{"id":5157,"date":"2026-09-19T01:01:07","date_gmt":"2026-09-19T01:01:07","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&#038;p=5157"},"modified":"2026-09-19T01:01:09","modified_gmt":"2026-09-19T01:01:09","slug":"jic-male-74-degree-cone-bspt-male-adapter-1jt-sp","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/de\/product\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp\/","title":{"rendered":"1JT-SP Adapter &#8211; JIC Male 74\u00b0 Cone to BSPT Male Taper Thread Cross Standard Hydraulic Adapter (SAE J514 \/ ISO 7-1)"},"content":{"rendered":"<p>The 1JT-SP adapter is a straight cross standard adapter that joins a JIC 74\u00b0 cone male end, made to SAE J514 with an inch thread, to a BSPT male taper thread made to ISO 7-1. It is the hydraulic conversion adapter used where an SAE inch tube line has to meet a port that is threaded BSPT, the British Standard Pipe Taper family in which pressure tightness is made on the threads themselves.<\/p>\r\n\r\n\r\n\r\n<p>Both ends must match their mating port exactly, because that match is the precondition for eliminating leakage at the conversion point. The two ends of this male adapter seal by completely different rules: one is a 74\u00b0 metal cone that seats on a machined cone face, and the other is a taper thread that seals along its flanks and crests as it is drawn into the port.<\/p>\r\n\r\n\r\n\r\n<p>Sealing principle of this series: connection 1 is a 74\u00b0 external cone that seats metal-to-metal on the mating 74\u00b0 internal cone, and connection 2 is a BSPT male taper thread with a 55\u00b0 thread angle that seals on the thread itself and therefore needs a thread sealant or a sealing compound. One part carries a mechanical cone joint and a thread-interference pipe joint, and each end must be prepared by its own rule.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">Core Advantages<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>One piece puts an SAE J514 inch thread and a BSPT taper thread on the same body, so an inch tube line meets a taper pipe port without an extra reducer.<\/li>\r\n\r\n\r\n\r\n<li>The JIC end is a 74\u00b0 cone sealing metal-to-metal, so no sealant is needed inside the cone joint.<\/li>\r\n\r\n\r\n\r\n<li>BSPT thread sizes from R1\/8&#8243;x28 up to R2&#8243;x11, against JIC sizes from 7\/16&#8243;x20 to 2.1\/2&#8243;x12.<\/li>\r\n\r\n\r\n\r\n<li>Straight body with a single centre hex, so the pipe end can be run in without the wrench fouling the tube side.<\/li>\r\n\r\n\r\n\r\n<li>Centre hex from 12 mm to 65 mm across flats, and a wide size range that includes 1.3\/16&#8243; and 2.1\/2&#8243; JIC ends.<\/li>\r\n\r\n\r\n\r\n<li>Carbon steel with trivalent chromium zinc plating, or 304 \/ 316 stainless steel for corrosive service.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">1. What a 1JT-SP Adapter Does<\/h2>\r\n\r\n\r\n\r\n<p>A 1JT-SP adapter is a straight stud with a JIC 74\u00b0 cone male end on one side and a BSPT male taper thread on the other. It connects a tube assembly terminated with a JIC 74\u00b0 cone nut and sleeve to a port that is threaded with a BSPT taper pipe thread.<\/p>\r\n\r\n\r\n\r\n<p>This JIC adapter does one job: it moves fluid between an SAE inch connection and a taper pipe port without changing direction, while changing the sealing method at the same time. The E column is the SAE J514 JIC 74\u00b0 cone end, printed in the inch style such as <code>9\/16\"X18<\/code>, and the F column is the BSPT end, printed as an R thread such as <code>R1\/4\"X19<\/code>.<\/p>\r\n\r\n\r\n\r\n<p>The thread angle and the pitch of the F end tell a buyer which pipe family the port belongs to. A BSPT thread is a 55\u00b0 taper thread under ISO 7-1, whereas an NPT thread is a 60\u00b0 taper thread under ANSI\/ASME B1.20.1; the two look similar at a glance and some sizes start by hand, but they will not seal in each other&#8217;s port. Section 6 covers how to tell them apart.<\/p>\r\n\r\n\r\n\r\n<p>The JIC end is the end that needs no sealant, while the BSPT end needs its thread prepared. Mixing those two habits up is the most common cause of a weeping joint on this series.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">2. 1JT-SP Specifications<\/h2>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.1 Connection 1 &#8211; JIC 74\u00b0 cone male end (E)<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thread standard and family: SAE J514, JIC 74\u00b0 cone seat family, inch thread.<\/li>\r\n\r\n\r\n\r\n<li>Thread size range available: 7\/16&#8243;x20 to 2.1\/2&#8243;x12, in the steps printed in table 2.5.<\/li>\r\n\r\n\r\n\r\n<li>Gender: male adapter stud end.<\/li>\r\n\r\n\r\n\r\n<li>Sealing method: 74\u00b0 external cone seating metal-to-metal on the mating 74\u00b0 internal cone.<\/li>\r\n\r\n\r\n\r\n<li>Mating port standard: SAE J514 74\u00b0 cone seat, made up with the matching nut and sleeve for the tube.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.2 Connection 2 &#8211; BSPT male taper thread (F)<\/h3>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thread standard and family: BSPT taper pipe thread to ISO 7-1, the family in which pressure-tight joints are made on the threads.<\/li>\r\n\r\n\r\n\r\n<li>Thread size range available: R1\/8&#8243;x28 to R2&#8243;x11, in the steps printed in table 2.5.<\/li>\r\n\r\n\r\n\r\n<li>Gender: male taper thread stud end.<\/li>\r\n\r\n\r\n\r\n<li>Sealing method: thread interference along a 55\u00b0 taper thread, assisted by a thread sealant or sealing compound; there is no separate elastomer or cone seat at this end.<\/li>\r\n\r\n\r\n\r\n<li>Mating port standard: a port threaded BSPT to ISO 7-1, with enough thread depth for the taper to run up to a sealing position.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Read the E column as the JIC adapter end in the SAE J514 inch thread standard and the F column as the BSPT end in the ISO 7-1 taper family. The two mirrored blocks above map one end of this hydraulic conversion adapter to the tube side and the other to the taper pipe port.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.3 Construction and Materials<\/h3>\r\n\r\n\r\n\r\n<p>The body is machined from bar stock on CNC lathes. The inch thread, the taper thread and the 74\u00b0 cone are turned in one setup so that the cone stays square to its thread and the taper runs true.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Body material: carbon steel as standard; 304 stainless steel or 316 stainless steel on request; brass for selected sizes.<\/li>\r\n\r\n\r\n\r\n<li>Plating and finish: trivalent chromium zinc plating (Cr3+) for carbon steel as standard; zinc-nickel plating available. Plating performance is confirmed per order rather than published as a series figure.<\/li>\r\n\r\n\r\n\r\n<li>Seal material options: this series has no captive seal. Where a seal material is required in the circuit, NBR, FKM and EPDM remain the options for the mating hose and tube assemblies.<\/li>\r\n\r\n\r\n\r\n<li>Thread form at the F end is a taper thread, so the sealing position depends on the port; the JIC end is a straight inch thread with a cone seat.<\/li>\r\n\r\n\r\n\r\n<li>Hex feature: a single centre hex (S1) on the body, from 12 mm to 65 mm across flats depending on size. There is no bulkhead feature in this series.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.4 Pressure and Temperature<\/h3>\r\n\r\n\r\n\r\n<p>Working pressure for a 1JT-SP adapter is not set by the series code. It is governed by the thread size, the wall thickness of the stud and the tube, the sealing method and the material selected, and is confirmed per order by HENGHUA engineering.<\/p>\r\n\r\n\r\n\r\n<p>Temperature is a material question and is stated here as a material fact rather than a performance claim. For NBR seals the working range is approximately -30\u00b0C to +100\u00b0C, for FKM (Viton-type) approximately -20\u00b0C to +200\u00b0C, and for EPDM approximately -40\u00b0C to +120\u00b0C. Because both ends of this series are metal joints, those ranges apply to the seals elsewhere in the circuit and to the thread sealant used at the taper end.<\/p>\r\n\r\n\r\n\r\n<p>Carbon steel with zinc plating suits general hydraulic service; specify 304 or 316 stainless steel for corrosive or offshore service.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\">2.5 Part Number and Dimension Table<\/h3>\r\n\r\n\r\n\r\n<p>The table below is the complete printed size range of the 1JT-SP series; lengths and hex dimensions are in millimetres.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"882\" class=\"wp-image-5156\" src=\"https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp-dimensions.png\" alt=\"1JT-SP adapter size and dimension chart listing part numbers 1JT-04-02SP to 1JT-32SP with JIC threads, BSPT R threads, lengths and hex across flats\" srcset=\"https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp-dimensions.png 750w, https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp-dimensions-255x300.png 255w, https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp-dimensions-10x12.png 10w, https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/jic-male-74-degree-cone-bspt-male-adapter-1jt-sp-dimensions-600x706.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>PART NO.<\/th>\r\n<th>E<\/th>\r\n<th>F<\/th>\r\n<th>A<\/th>\r\n<th>B<\/th>\r\n<th>L<\/th>\r\n<th>S1<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>1JT-04-02SP<\/td>\r\n<td>7\/16&#8243;X20<\/td>\r\n<td>R1\/8&#8243;X28<\/td>\r\n<td>14<\/td>\r\n<td>10<\/td>\r\n<td>30<\/td>\r\n<td>12<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-04SP<\/td>\r\n<td>7\/16&#8243;X20<\/td>\r\n<td>R1\/4&#8243;X19<\/td>\r\n<td>14<\/td>\r\n<td>14.5<\/td>\r\n<td>34.5<\/td>\r\n<td>14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-04-06SP<\/td>\r\n<td>7\/16&#8243;X20<\/td>\r\n<td>R3\/8&#8243;X19<\/td>\r\n<td>14<\/td>\r\n<td>15<\/td>\r\n<td>35<\/td>\r\n<td>17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-05-02SP<\/td>\r\n<td>1\/2&#8243;X20<\/td>\r\n<td>R1\/8&#8243;X28<\/td>\r\n<td>14<\/td>\r\n<td>10.5<\/td>\r\n<td>30.5<\/td>\r\n<td>14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-05-04SP<\/td>\r\n<td>1\/2&#8243;X20<\/td>\r\n<td>R1\/4&#8243;X19<\/td>\r\n<td>14<\/td>\r\n<td>14.5<\/td>\r\n<td>34<\/td>\r\n<td>14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-05-06SP<\/td>\r\n<td>1\/2&#8243;X20<\/td>\r\n<td>R3\/8&#8243;X19<\/td>\r\n<td>14<\/td>\r\n<td>15<\/td>\r\n<td>35<\/td>\r\n<td>19<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-06-02SP<\/td>\r\n<td>9\/16&#8243;X18<\/td>\r\n<td>R1\/8&#8243;X28<\/td>\r\n<td>14.1<\/td>\r\n<td>10.5<\/td>\r\n<td>30.5<\/td>\r\n<td>17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-06-04SP<\/td>\r\n<td>9\/16&#8243;X18<\/td>\r\n<td>R1\/4&#8243;X19<\/td>\r\n<td>14.1<\/td>\r\n<td>14.5<\/td>\r\n<td>34<\/td>\r\n<td>17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-06SP<\/td>\r\n<td>9\/16&#8243;X18<\/td>\r\n<td>R3\/8&#8243;X19<\/td>\r\n<td>14.1<\/td>\r\n<td>15<\/td>\r\n<td>34<\/td>\r\n<td>17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-06-08SP<\/td>\r\n<td>9\/16&#8243;X18<\/td>\r\n<td>R1\/2&#8243;X14<\/td>\r\n<td>14.1<\/td>\r\n<td>20<\/td>\r\n<td>41<\/td>\r\n<td>22<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-08-06SP<\/td>\r\n<td>3\/4&#8243;X16<\/td>\r\n<td>R3\/8&#8243;X19<\/td>\r\n<td>16.7<\/td>\r\n<td>15<\/td>\r\n<td>39<\/td>\r\n<td>22<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-08SP<\/td>\r\n<td>3\/4&#8243;X16<\/td>\r\n<td>R1\/2&#8243;X14<\/td>\r\n<td>16.7<\/td>\r\n<td>20<\/td>\r\n<td>44.5<\/td>\r\n<td>22<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-08-12SP<\/td>\r\n<td>3\/4&#8243;X16<\/td>\r\n<td>R3\/4&#8243;X14<\/td>\r\n<td>16.7<\/td>\r\n<td>20<\/td>\r\n<td>46<\/td>\r\n<td>30<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-10-06SP<\/td>\r\n<td>7\/8&#8243;X14<\/td>\r\n<td>R3\/8&#8243;X19<\/td>\r\n<td>19.3<\/td>\r\n<td>15<\/td>\r\n<td>42.5<\/td>\r\n<td>24<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-10-08SP<\/td>\r\n<td>7\/8&#8243;X14<\/td>\r\n<td>R1\/2&#8243;X14<\/td>\r\n<td>19.3<\/td>\r\n<td>20<\/td>\r\n<td>46.5<\/td>\r\n<td>24<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-10-12SP<\/td>\r\n<td>7\/8&#8243;X14<\/td>\r\n<td>R3\/4&#8243;X14<\/td>\r\n<td>19.3<\/td>\r\n<td>20<\/td>\r\n<td>48.5<\/td>\r\n<td>30<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-12-08SP<\/td>\r\n<td>1.1\/16&#8243;X12<\/td>\r\n<td>R1\/2&#8243;X14<\/td>\r\n<td>21.9<\/td>\r\n<td>20<\/td>\r\n<td>51<\/td>\r\n<td>30<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-12SP<\/td>\r\n<td>1.1\/16&#8243;X12<\/td>\r\n<td>R3\/4&#8243;X14<\/td>\r\n<td>21.9<\/td>\r\n<td>20<\/td>\r\n<td>51<\/td>\r\n<td>30<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-12-16SP<\/td>\r\n<td>1.1\/16&#8243;X12<\/td>\r\n<td>R1&#8243;X11<\/td>\r\n<td>21.9<\/td>\r\n<td>25.5<\/td>\r\n<td>57.5<\/td>\r\n<td>36<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-14-12SP<\/td>\r\n<td>1.3\/16&#8243;X12<\/td>\r\n<td>R3\/4&#8243;X14<\/td>\r\n<td>22.6<\/td>\r\n<td>20<\/td>\r\n<td>52.5<\/td>\r\n<td>32<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-14-16SP<\/td>\r\n<td>1.3\/16&#8243;X12<\/td>\r\n<td>R1&#8243;X11<\/td>\r\n<td>22.6<\/td>\r\n<td>25.5<\/td>\r\n<td>57.5<\/td>\r\n<td>36<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-16-12SP<\/td>\r\n<td>1.5\/16&#8243;X12<\/td>\r\n<td>R3\/4&#8243;X14<\/td>\r\n<td>23.1<\/td>\r\n<td>20<\/td>\r\n<td>53<\/td>\r\n<td>36<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-16SP<\/td>\r\n<td>1.5\/16&#8243;X12<\/td>\r\n<td>R1&#8243;X11<\/td>\r\n<td>23.1<\/td>\r\n<td>25.5<\/td>\r\n<td>59<\/td>\r\n<td>36<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-16-20SP<\/td>\r\n<td>1.5\/16&#8243;X12<\/td>\r\n<td>R1.1\/4&#8243;X11<\/td>\r\n<td>23.1<\/td>\r\n<td>26.5<\/td>\r\n<td>61.5<\/td>\r\n<td>46<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-20-16SP<\/td>\r\n<td>1.5\/8&#8243;X12<\/td>\r\n<td>R1&#8243;X11<\/td>\r\n<td>24.3<\/td>\r\n<td>25.5<\/td>\r\n<td>62.5<\/td>\r\n<td>46<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-20SP<\/td>\r\n<td>1.5\/8&#8243;X12<\/td>\r\n<td>R1.1\/4&#8243;X11<\/td>\r\n<td>24.3<\/td>\r\n<td>26.5<\/td>\r\n<td>63<\/td>\r\n<td>46<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-20-24SP<\/td>\r\n<td>1.5\/8&#8243;X12<\/td>\r\n<td>R1.1\/2&#8243;X11<\/td>\r\n<td>24.3<\/td>\r\n<td>26.5<\/td>\r\n<td>66.5<\/td>\r\n<td>50<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-24-20SP<\/td>\r\n<td>1.7\/8&#8243;X12<\/td>\r\n<td>R1.1\/4&#8243;X11<\/td>\r\n<td>27.5<\/td>\r\n<td>26.5<\/td>\r\n<td>67.5<\/td>\r\n<td>50<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-24SP<\/td>\r\n<td>1.7\/8&#8243;X12<\/td>\r\n<td>R1.1\/2&#8243;X11<\/td>\r\n<td>27.5<\/td>\r\n<td>26.5<\/td>\r\n<td>69.5<\/td>\r\n<td>50<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-24-32SP<\/td>\r\n<td>1.7\/8&#8243;X12<\/td>\r\n<td>R2&#8243;X11<\/td>\r\n<td>27.5<\/td>\r\n<td>30<\/td>\r\n<td>74.5<\/td>\r\n<td>65<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-32-24SP<\/td>\r\n<td>2.1\/2&#8243;X12<\/td>\r\n<td>R1.1\/2&#8243;X11<\/td>\r\n<td>33.9<\/td>\r\n<td>26.5<\/td>\r\n<td>77.5<\/td>\r\n<td>65<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1JT-32SP<\/td>\r\n<td>2.1\/2&#8243;X12<\/td>\r\n<td>R2&#8243;X11<\/td>\r\n<td>33.9<\/td>\r\n<td>30<\/td>\r\n<td>80<\/td>\r\n<td>65<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n<p><strong>What each column means<\/strong><\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>PART NO.<\/strong> &#8211; the HENGHUA part number: the prefix <code>1JT<\/code>, the size codes and the <code>SP<\/code> suffix that marks the BSPT taper end.<\/li>\r\n\r\n\r\n\r\n<li><strong>E<\/strong> &#8211; the thread of connection 1, the JIC 74\u00b0 cone end, printed as diameter x threads per inch in the SAE style, for example <code>3\/4\"X16<\/code>.<\/li>\r\n\r\n\r\n\r\n<li><strong>F<\/strong> &#8211; the thread of connection 2, the BSPT taper end, printed as an R thread with its threads per inch, for example <code>R1\/2\"X14<\/code>.<\/li>\r\n\r\n\r\n\r\n<li><strong>A<\/strong> &#8211; the length from the end of connection 1 (the JIC cone end) to the hex face on that side, in millimetres, as marked on the series drawing.<\/li>\r\n\r\n\r\n\r\n<li><strong>B<\/strong> &#8211; the same measurement at connection 2 (the BSPT end), in millimetres.<\/li>\r\n\r\n\r\n\r\n<li><strong>L<\/strong> &#8211; the overall length of the part from end to end, in millimetres.<\/li>\r\n\r\n\r\n\r\n<li><strong>S1<\/strong> &#8211; the hex across flats, in millimetres, used to hold the body with a wrench during assembly.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p><strong>Thread size and dash chart<\/strong><\/p>\r\n\r\n\r\n\r\n<p>The JIC size code follows the SAE convention based on the nominal tube outside diameter in sixteenths of an inch. The BSPT thread is printed directly.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>JIC size code<\/th>\r\n<th>JIC thread<\/th>\r\n<th>BSPT threads at the F end<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>04<\/td>\r\n<td>7\/16&#8243;x20<\/td>\r\n<td>R1\/8&#8243;x28, R1\/4&#8243;x19, R3\/8&#8243;x19<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>05<\/td>\r\n<td>1\/2&#8243;x20<\/td>\r\n<td>R1\/8&#8243;x28, R1\/4&#8243;x19, R3\/8&#8243;x19<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>06<\/td>\r\n<td>9\/16&#8243;x18<\/td>\r\n<td>R1\/8&#8243;x28, R1\/4&#8243;x19, R3\/8&#8243;x19, R1\/2&#8243;x14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>08<\/td>\r\n<td>3\/4&#8243;x16<\/td>\r\n<td>R3\/8&#8243;x19, R1\/2&#8243;x14, R3\/4&#8243;x14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>10<\/td>\r\n<td>7\/8&#8243;x14<\/td>\r\n<td>R3\/8&#8243;x19, R1\/2&#8243;x14, R3\/4&#8243;x14<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>12<\/td>\r\n<td>1.1\/16&#8243;x12<\/td>\r\n<td>R1\/2&#8243;x14, R3\/4&#8243;x14, R1&#8243;x11<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>14<\/td>\r\n<td>1.3\/16&#8243;x12<\/td>\r\n<td>R3\/4&#8243;x14, R1&#8243;x11<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>16<\/td>\r\n<td>1.5\/16&#8243;x12<\/td>\r\n<td>R3\/4&#8243;x14, R1&#8243;x11, R1.1\/4&#8243;x11<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>20<\/td>\r\n<td>1.5\/8&#8243;x12<\/td>\r\n<td>R1&#8243;x11, R1.1\/4&#8243;x11, R1.1\/2&#8243;x11<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>24<\/td>\r\n<td>1.7\/8&#8243;x12<\/td>\r\n<td>R1.1\/4&#8243;x11, R1.1\/2&#8243;x11, R2&#8243;x11<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>32<\/td>\r\n<td>2.1\/2&#8243;x12<\/td>\r\n<td>R1.1\/2&#8243;x11, R2&#8243;x11<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n<p><strong>Nut and sleeve are ordered separately.<\/strong> The 1JT-SP stud does not include them. Use nut NB200 with sleeve NB500 for metric tube and with sleeve NB300 for inch tube.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">3. How to Read a 1JT-SP Part Number<\/h2>\r\n\r\n\r\n\r\n<p>A 1JT-SP part number has three elements: the series prefix, one or two size codes, and the <code>SP<\/code> suffix that marks the BSPT end.<\/p>\r\n\r\n\r\n\r\n<p>The prefix <code>1JT<\/code> identifies the geometry of this cross standard adapter: a straight stud with a JIC 74\u00b0 cone male end and a BSPT male end. The <code>SP<\/code> suffix records that the pipe end is a taper thread, which is the point a buyer must check first, because a BSPP parallel thread part with the same pipe size will start into the port by hand and then fail to seal. For the elbow version of the same conversion, the prefix becomes <code>1JT4<\/code> for a 45\u00b0 body.<\/p>\r\n\r\n\r\n\r\n<p>The first size code is the JIC end, taken from the SAE dash convention, and the second size code is the BSPT end, taken from the R thread designation. Where one size code is printed, such as <code>1JT-16SP<\/code>, the row pairs that JIC size with the pipe size of matching rank; where two codes are printed, the part steps between two sizes.<\/p>\r\n\r\n\r\n\r\n<p><strong>Worked example: 1JT-08-12SP.<\/strong><\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><code>1JT<\/code> &#8211; straight stud, JIC 74\u00b0 cone male to BSPT male.<\/li>\r\n\r\n\r\n\r\n<li><code>08<\/code> &#8211; connection 1 is the SAE J514 size with a 3\/4&#8243;x16 thread.<\/li>\r\n\r\n\r\n\r\n<li><code>12<\/code> &#8211; connection 2 is the BSPT end with an R3\/4&#8243;x14 taper thread.<\/li>\r\n\r\n\r\n\r\n<li><code>SP<\/code> &#8211; the pipe end is a taper thread that seals on the thread.<\/li>\r\n\r\n\r\n\r\n<li>From the table: A is 16.7 mm, B is 20 mm, L is 46 mm and S1 is 30 mm.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>A buyer ordering 1JT-08-12SP therefore receives a male adapter whose JIC end takes a 3\/4&#8243;x16 tube assembly and whose pipe end runs into an R3\/4&#8243; port. Check the port thread family before ordering, because an NPT port of similar size is a different thread form.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">4. Installation and Fitment<\/h2>\r\n\r\n\r\n\r\n<p>The two ends of a 1JT-SP adapter are prepared by different rules. The JIC end is a cone joint: it is tightened until the cone seats metal-to-metal, with no sealant in the cone path. The BSPT end is a taper thread joint: it is run into the port until the threads interfere and it is made up with a thread sealant suited to the fluid. HENGHUA does not print a single torque figure for this hydraulic adapter, because correct tightening depends on the mating port, the tube material and the wall thickness.<\/p>\r\n\r\n\r\n\r\n<p>Cone seat handling: keep the 74\u00b0 cone and the mating JIC seat clean and free of nicks. Wipe the cone with a lint-free cloth and inspect it under good light. An overtightened cone is deformed and must be replaced.<\/p>\r\n\r\n\r\n\r\n<p>Taper thread handling: check the thread for galling and burrs, apply sealant to the male thread only, and leave the first thread clear so that sealant cannot enter the circuit. Do not wrap the thread with tape in a way that pushes a loose tail into the fluid path.<\/p>\r\n\r\n\r\n\r\n<p>Contamination control: cap open ends before storage, because debris carried into the cone seat or the taper thread stops the joint from bedding.<\/p>\r\n\r\n\r\n\r\n<p>Alignment: start both ends by hand before applying a wrench, so that a cross-threaded pipe end is felt rather than forced.<\/p>\r\n\r\n\r\n\r\n<p>Reuse policy: a body with an undamaged cone and taper thread can be reused after cleaning; the nut and sleeve are replaced at every rebuild, and the old thread sealant is removed before the part goes back into service.<\/p>\r\n\r\n\r\n\r\n<p>Common fitment errors and their symptoms:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Running a BSPT part into an NPT port. Symptom: the threads bind after a turn or two and the joint weeps along the flank.<\/li>\r\n\r\n\r\n\r\n<li>Running a BSPP parallel part into a BSPT port. Symptom: the thread enters fully with no interference and the joint never tightens.<\/li>\r\n\r\n\r\n\r\n<li>Using no sealant at the taper end. Symptom: a slow weep from the first thread that returns after each re-tightening.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p><strong>Six-step assembly<\/strong><\/p>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li>Confirm the part number against the line list, and check that the E end is the JIC 74\u00b0 cone and the F end is the correct BSPT pipe size.<\/li>\r\n\r\n\r\n\r\n<li>Inspect the cone and the taper thread for nicks, galling and previous overtightening marks.<\/li>\r\n\r\n\r\n\r\n<li>Check the port thread family and depth, and confirm it is BSPT under ISO 7-1 rather than NPT.<\/li>\r\n\r\n\r\n\r\n<li>Fit the nut and sleeve to the JIC tube, then bring the tube square to the cone end by hand.<\/li>\r\n\r\n\r\n\r\n<li>Run the JIC nut up by hand and tighten in stages until the cone seats; apply sealant to the taper thread and run the pipe end in until it interferes.<\/li>\r\n\r\n\r\n\r\n<li>Pressurise the circuit, check both ends for weeping, and re-check tightness after the first thermal cycle.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">5. Applications and Industries<\/h2>\r\n\r\n\r\n\r\n<p>Application tags for this series: hydraulic systems, water jetting, oil and gas, industrial equipment, construction machinery, agriculture, marine, material handling.<\/p>\r\n\r\n\r\n\r\n<p><strong>Cross-standard equipment integration.<\/strong> Machinery sourced from different regions often combines an SAE inch tube line with a manifold threaded in BSPT. This hydraulic conversion adapter provides that interface, and the long size ladder from R1\/8&#8243; up to R2&#8243; means the pipe end can be matched to the port rather than the other way round.<\/p>\r\n\r\n\r\n\r\n<p><strong>Repair and replacement.<\/strong> Maintenance crews fit this series when a leaking taper pipe stud or a damaged inch tube end has to be renewed on site. Because the pipe end seals on the thread, a joint that has been re-made several times can be brought back with fresh sealant on a new stud.<\/p>\r\n\r\n\r\n\r\n<p><strong>High-pressure test benches.<\/strong> Test rigs built from pipe-threaded components use the taper end at the bench side and the JIC 74\u00b0 cone end at the test item side, so that the item under test is connected on a cone joint while the bench manifold stays as built.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">6. Replacement and Cross-Reference Guide<\/h2>\r\n\r\n\r\n\r\n<p>Cross-reference here is organised by standard and sealing method, never by brand: two fittings interchange only if standard, thread size, seat angle and seal type all match.<\/p>\r\n\r\n\r\n\r\n<p>A 1JT-SP adapter is a JIC adapter with an SAE J514 74\u00b0 cone stud at one end and an ISO 7-1 BSPT taper thread at the other. It does not interchange with a JIC 37\u00b0 flare fitting, which seals on a 37\u00b0 conical flare face, or with an ORFS fitting, which seals a flat face against an O-ring under SAE J1453. The two lookalikes to watch are an NPT part, which is a 60\u00b0 taper thread under ANSI\/ASME B1.20.1, and a BSPP part, which is a parallel thread under ISO 228-1 that seals on a bonded washer or a 60\u00b0 seat rather than on the thread.<\/p>\r\n\r\n\r\n\r\n<p>To identify the correct replacement, measure three things.<\/p>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li><strong>Thread at the JIC end.<\/strong> Measure outside diameter and threads per inch. A 3\/4&#8243; end measures about 19.1 mm outside diameter with 16 threads per inch, which reads as a size 08 JIC cone end.<\/li>\r\n\r\n\r\n\r\n<li><strong>Thread at the pipe end.<\/strong> Measure the outside diameter at the first full thread and count the pitch. A BSPT thread has a 55\u00b0 form, so a thread gauge for ISO 7-1 will seat while an NPT gauge for the same nominal size will not.<\/li>\r\n\r\n\r\n\r\n<li><strong>Sealing surface.<\/strong> The cone end shows a wide machined cone; the pipe end has no separate seat, only a taper thread, which confirms that sealant is required.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<p>Where a port is found to be parallel rather than tapered, or metrically threaded, the correct part is a cross standard adapter for that family. Record the measurements with the part number and HENGHUA can match the replacement.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">7. Ordering, Packaging and Delivery<\/h2>\r\n\r\n\r\n\r\n<p>To order, give the following information:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Series code: <code>1JT-SP<\/code>.<\/li>\r\n\r\n\r\n\r\n<li>Full part number, for example 1JT-16-20SP, taken from table 2.5.<\/li>\r\n\r\n\r\n\r\n<li>Thread sizes for the JIC end and the BSPT end, and confirmation that the port thread is tapered to ISO 7-1.<\/li>\r\n\r\n\r\n\r\n<li>Nut and sleeve requirement for the inch tube (nut NB200 with sleeve NB300), ordered separately from the stud.<\/li>\r\n\r\n\r\n\r\n<li>Body material and plating: carbon steel with trivalent chromium zinc plating, zinc-nickel plating, or 304 or 316 stainless steel.<\/li>\r\n\r\n\r\n\r\n<li>Quantity, and the destination and packing format required.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Packaging formats: bulk cartons for line-side consumption, small boxes for distributor shelves and labelled bags for service kits, each labelled with the part number. Sample orders: validation and first-article parts are available for OEM programmes, including specials outside the printed table.<\/p>\r\n\r\n\r\n\r\n<p>Lead time is confirmed per order, because it depends on the size, the material, the plating and the quantity. As a hydraulic adapter manufacturer and supplier, HENGHUA can quote the stud, the nut and the sleeve as one matched kit.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">8. FAQ<\/h2>\r\n\r\n\r\n\r\n<p><strong>What is the difference between JIC 37\u00b0 flare and ORFS, and which should I use?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>A JIC 37\u00b0 flare joint seals metal-to-metal on a 37\u00b0 conical flare face under SAE J514. An ORFS joint seals a flat face against an elastomeric O-ring under SAE J1453. Choose the family that matches the port already on the equipment. The 1JT-SP series is on the JIC 74\u00b0 cone side of SAE J514, with a taper pipe thread at the other end.<\/p>\r\n\r\n\r\n\r\n<p><strong>Can NPT and BSPT be interchanged?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>No. NPT is a 60\u00b0 taper pipe thread under ANSI\/ASME B1.20.1, and BSPT is a 55\u00b0 taper pipe thread under ISO 7-1. The thread form, the angle and the pitch differ, so the two will not seal even though some sizes start by hand. The 1JT-SP adapter is a BSPT part, so an NPT port needs a different thread family, not more sealant.<\/p>\r\n\r\n\r\n\r\n<p><strong>How do I identify the correct 1JT-SP adapter size?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Measure the outside diameter and the threads per inch at the JIC end, and identify the pipe thread family and size at the other end. When the E thread and the F thread both match a printed row of table 2.5, that row is the correct part number.<\/p>\r\n\r\n\r\n\r\n<p><strong>What seal material should I select for my fluid and temperature?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>For general mineral hydraulic oil within -30\u00b0C to +100\u00b0C, NBR is the usual choice. For higher temperatures up to approximately +200\u00b0C, or where the fluid attacks NBR, choose FKM (Viton-type). For water-based fluids, choose EPDM, with a range of approximately -40\u00b0C to +120\u00b0C. This series has no captive seal, so the seal compound applies to the rest of the circuit and the taper thread sealant must be chosen for the same fluid.<\/p>\r\n\r\n\r\n\r\n<p><strong>How is the working pressure of this adapter determined?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Working pressure is not fixed by the series code. It is governed by the thread size, the wall thickness and the material selected, and is confirmed per order by HENGHUA engineering.<\/p>\r\n\r\n\r\n\r\n<p><strong>What is the minimum order quantity and can I get samples?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Minimum order quantity depends on the size code, material, plating and quantity, so it is confirmed with the quotation. Samples are available for OEM evaluation.<\/p>\r\n\r\n\r\n\r\n<p><strong>Does this series need a thread sealant?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Yes at the BSPT end. A taper pipe thread to ISO 7-1 makes its pressure-tight joint on the threads, so a sealant suited to the fluid is applied to the male thread. The JIC 74\u00b0 cone end needs no sealant, and sealant in the cone path can stop the cone from seating.<\/p>\r\n\r\n\r\n\r\n<p><strong>Will a 1JT-SP adapter fit the same port as a BSPP adapter?<\/strong><\/p>\r\n\r\n\r\n\r\n<p>No. A BSPP part is a parallel thread under ISO 228-1 and seals on a bonded washer or a 60\u00b0 seat, while this series is a taper thread that seals on the threads. The nominal pipe size may be printed the same way, but the port and the sealing method differ.<\/p>\r\n\r\n\r\n\r\n<p><strong>Send your requirement to HENGHUA<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Send the part number, the JIC thread, the BSPT pipe size, the material and plating, and the quantity. HENGHUA confirms the match to the printed table, the thread family and the delivery schedule, and quotes the 1JT-SP adapter that fits your circuit.<\/p>\r\n\r\n\r\n\r\n<p>Related series in the same family: <a href=\"https:\/\/www.henghuahose.com\/de\/product\/45-degree-elbow-jic-male-74-degree-cone-bspt-male-adapter-1jt4-sp\/\" target=\"_blank\" rel=\"noopener\">the 1JT4-SP adapter (45\u00b0 elbow)<\/a> and <a href=\"https:\/\/www.henghuahose.com\/de\/product\/jic-male-74-degree-cone-bsp-male-captive-seal-adapter-1jb-wd\/\" target=\"_blank\" rel=\"noopener\">the 1JB-WD adapter (straight)<\/a>. Browse the full <a href=\"https:\/\/www.henghuahose.com\/de\/product-category\/hydraulic-adapters\/\" target=\"_blank\" rel=\"noopener\">Hydraulic Adapters range<\/a> for the complete SAE J514 JIC, NPT, ORFS and ISO 6162 flange families.<\/p>","protected":false},"excerpt":{"rendered":"<p>The 1JT-SP adapter is a straight cross standard hydraulic adapter that joins an SAE J514 JIC 74\u00b0 cone male end to a BSPT male taper thread made to ISO 7-1, where the pipe end seals on its 55\u00b0 threads and the cone end seals metal-to-metal. It covers 32 part numbers from 7\/16&#8243;x20 with R1\/8&#8243;x28 up to 2.1\/2&#8243;x12 with R2&#8243;x11, in carbon steel with trivalent chromium zinc plating or 304 \/ 316 stainless steel. It serves hydraulic systems, taper pipe ports and cross-standard OEM assembly.<\/p>","protected":false},"featured_media":5155,"comment_status":"open","ping_status":"closed","template":"","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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