JIC Male 74° Cone Hose Fitting: 16711-RW Series

Why This JIC Male 74° Cone Hose Fitting Passes the Compliance Gate

A JIC male 74° cone fitting is the standard termination for braided hydraulic hose on machinery built to American standards. The 16711-RW series from HENGHUA is a one-piece crimp fitting with a SAE J514 (ISO 8434-2) 37° flare male end, covering 26 sizes from -03 to -32 with UNF threads from 7/16″-20 to 2-1/2″-12. Every unit is cold-forged from carbon steel, heat-treated, plated, and 100% pressure tested before shipment. For OEM buyers this fitting is a compliance gate; for distributors and maintenance teams it is a proven, fast-moving stock line. For buyers comparing JIC male 74° cone fitting options, the two things to verify first are the flare angle and the crimp parameters, both of which are documented below.

• SAE J514 (ISO 8434-2) JIC end: 37° flare cone (74° included angle) seals metal-to-metal into a female flare seat, with no O-ring and no thread sealant required.
• One-piece crimp body: machined stem and ferrule seat matched to braided hose constructions; the spiral-hose version carries the 16712 series number.
• OEM gate check: full dimensional and material conformance per SAE J514, with material test reports (MTR) available for every batch.

Core Advantages

1. JIC end rated up to 34.5 MPa (5,000 psi): per SAE J514 / ISO 8434-2, with every fitting hydrostatically tested before shipment.
2. -40°C to +120°C operating range: tested across cold-start mobile equipment and hot industrial circuits without seal degradation.
3. 37° flare metal-to-metal seal: the cone face does the sealing, which is what makes a JIC male 74° cone fitting leak-tight without O-rings or sealant.
4. 96 to 1000 h salt spray options: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h), matched to your environment.

Technical Specifications

What Is a JIC Male 74° Cone Fitting?

A JIC fitting is the American industrial flare connection defined by SAE J514 and ISO 8434-2. The name comes from the 37° flare angle: each cone flank sits 37° from the axis, which makes the included cone angle 74°, the “74° cone” you see in catalogs and on drawings. For anyone sourcing a JIC male 74° cone fitting, the cone angle is the defining check: a 37° flare seat will not seal against a 24° DIN cone or a 30° JIS cone, so the angle must match the mating port. The male cone face seals metal-to-metal against a matching female flare seat, so the joint stays leak-tight without O-rings, washers, or sealant. JIC 37° flare fittings are the default connection on American-built construction equipment, agricultural machinery, trucks, and industrial machines, and they are equally common on exported equipment that must interface with JIC ports.

JIC fittings share the 37° flare geometry with AN aerospace fittings, but the two families are not interchangeable: AN fittings are machined to tighter tolerances under aerospace specifications. When a machine calls for SAE J514, the fitting must carry the JIC industrial tolerance class, which is exactly what the 16711-RW series delivers.

Dimensional Data and Threads

Full dimension drawings with A, C, and S1 callouts are supplied as PDF and CAD (STEP/DWG) files. Because this is a crimp fitting, the two process-critical parameters are the hose insert depth and the crimp outside diameter; both are hose-series specific and are listed in the crimp data sheet that accompanies every order. Request the drawing pack with your inquiry and the engineering team will send the exact size table for your thread and hose combination.

Full Dimension Table (Part Number Matrix) {#by-thread-size}

Read the table with your JIC thread (E) and your hose size (dash). The part number is the order code; copy it directly into your inquiry or purchase order. The pattern is 16711-[thread dash]-[hose dash]RW: for example, 16711-08-06RW has a 3/4″-16 thread and suits a -06 (10 mm) braided hose. The RW designation marks the JIC male 74° cone style. If you need the same geometry for spiral hose, order the 16712 series.

The A dimension shown is for braided hose. For spiral hose use the 16712 series, whose stem is longer to engage the extra reinforcement layers.

Material and Heat Treatment

Cold forging preserves the grain flow of the steel, which raises fatigue resistance under pressure pulsation. Each heat-treatment batch is hardness-tested and recorded, so the hardness number on the MTR matches the parts you receive.

Working Pressure

The exact rating for your part number and hose combination is confirmed on the datasheet and by our engineers before shipment.

Pressure-Temperature Operating Envelope

The steel fitting body holds full rated pressure across the whole temperature window. In a crimped assembly the working pressure is governed by the weakest component, normally the hose; use the hose derating curve for the system, and the fitting will not be the limiting part.

Selection and Ordering

The 16711-RW series covers the full common range of JIC hydraulic hose fittings for braided hose, from -03 to -32, so most orders can be placed directly from the tables below.

How to Read the Part Number Matrix

Find your JIC thread in the E column, then the hose dash size you use. The intersecting row gives the order code, for example a 9/16″-18 thread with a -06 hose gives 16711-06-06RW. For JIC crimp fittings buyers, the matrix removes the guesswork from ordering. If your combination is not listed, send us both sizes; a custom JIC male 74° cone fitting is machined on request.

JIC Thread Size Chart

Use this chart to identify any JIC male fitting by its thread, and to confirm the matching hose dash sizes. It is the same mapping used in the matrix above.

Cross Reference Service

Most maintenance teams buy against a legacy part number printed on the old drawing. Send us the OEM or distributor part number you currently use, with a photo of the fitting if possible. Our engineers identify the thread, flare angle, hose size, and body length, then confirm the exact 16711-RW equivalent before you place the order. The service covers JIC 37 degree flare fittings, JIC hydraulic hose fittings, and JIC crimp fittings in your inventory, and interchange confirmation is free. The cross reference sheet is returned in PDF for your records.

Packaging and Logistics

Assembly and Use Guide

Four-Step Crimping Procedure

Crimping a JIC male 74° cone fitting takes less than a minute when the preparation is correct. Follow the four steps below and verify every crimp with the caliper check.

1. Cut the hose square: use a hose cutter, never a hacksaw or an angle grinder. A square, clean end is the precondition for a uniform ferrule grip; a beveled cut leaves a gap that can weep under pulsation.
2. Mark the insert depth: read the insert depth for your hose series from the crimp data sheet and mark the line on the hose cover with a soft pen.
3. Lubricate and insert: apply a thin film of assembly lubricant to the stem and the hose bore, push the fitting into the hose until the mark meets the ferrule, and hold it there while the die closes.
4. Crimp and verify: select the die per the crimp table, crimp in one continuous stroke, then measure the crimp outside diameter with a caliper at the positions shown in the table and compare with the tolerance. The caliper check is the single most important quality step in the whole process.

Connecting the JIC 37° Flare End

Clean the 37° flare cone and the mating female flare seat with a lint-free cloth, then tighten the nut to the torque listed for the thread size. JIC 37 degree flare fittings seal by cone contact alone, which is why the cone face must stay clean and dry. The metal-to-metal cone does the sealing, so no tape and no sealant is applied to the flare face. Overtightening distorts the cone; use a torque wrench for repeatable results on production lines.

Installation Warnings

• ❌ Never mix fittings and ferrules from different suppliers, even when the thread and hose sizes look identical. Stem geometry, ferrule hardness, and crimp parameters differ, and a mixed joint will leak or blow off under pressure.
• ❌ Never crimp without the matching crimp data sheet. An under-crimped joint weeps, and an over-crimped joint damages the hose reinforcement; both fail early.
• ❌ Never recrimp a fitting after a failed attempt, and never reuse a fitting removed from a hose. The ferrule is deformed permanently by the first crimp.
• ❌ Never apply sealant to the 37° flare cone face. It hardens, blocks metal-to-metal contact, and becomes a contamination source in the system.
• ✔ After assembly, pressure-test the circuit at 1.5x working pressure and inspect all joints for weepage.

OEM Customization and Quality Traceability

Customization Options

• Size and thread customization: non-standard thread and hose combinations, special stem lengths, and custom step-down configurations machined to your drawing.
• Surface treatment customization: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h) salt spray grades, selected by your environment and corrosion specification.
• Laser marking: your logo, part number, and batch code laser-marked on the hex for full field traceability.
• Material options: 304/316L stainless for chemical, marine, and food-contact circuits, with passivation certificates.

Quality and Traceability System

Every batch follows a documented flow: incoming steel with mill certificate → cold forging → CNC machining → heat treatment → plating → 100% thread gauge and dimension inspection → pressure test → laser marking → packing. The batch number on the carton links back to the raw material lot, the heat-treatment record, and the inspection report. Material test reports (MTR) are provided with every order on request, and third-party inspection reports (BV/SGS) can be arranged before shipment.

FAQ

Q: What is a JIC male 74° cone fitting? A: It is a crimp-on hose fitting with a male flare end built to SAE J514 / ISO 8434-2. The 74° figure is the included cone angle; each flank is 37° from the axis, which is why JIC fittings are also called JIC 37 degree flare fittings. The two names describe the same geometry.

Q: Are JIC and AN fittings the same? A: No. Both use a 37° flare, but AN fittings are aerospace parts machined to tighter tolerances under separate specifications. A JIC fitting made to SAE J514 is the correct choice for industrial hydraulic systems, and the two families are not interchangeable in practice.

Q: What hose does the 16711-RW series fit? A: The series is designed for braided hose, typically EN 853 1SN/2SN or SAE 100R1AT/R2AT constructions from -03 to -32. For spiral hose use the 16712 series, which has a longer stem for the extra reinforcement layers.

Q: Do JIC fittings need sealant or an O-ring? A: No. The 37° flare seal is metal-to-metal. An O-ring is used only on ORFS fittings, which have a flat-face seal geometry. Keep the flare cone clean and dry, and tighten the nut to the listed torque.

Q: How do I identify the right JIC fitting size? A: Measure the thread across the flats with calipers and count the threads per inch, then match the thread to the chart above. Match the hose inside diameter in 1/16″ increments to the dash size, and read the part number from the matrix.

Q: Can you provide crimp data for my hose? A: Yes. Every order includes the crimp data sheet for your hose construction, with insert depth, crimp outside diameter, and die selection. Correct crimp parameters are what separate reliable JIC crimp fittings from early failures, so we confirm them before shipment. Send us your hose series and brand, and our engineers will confirm the crimp parameters before shipment.

Request a Quote

Tell us the JIC thread, the hose dash size, the hose construction, and the annual quantity. Whether you need stock JIC hydraulic hose fittings for distribution or a custom JIC male 74° cone fitting for an OEM program, the quoting process is the same. For replacement orders, send the legacy part number and a photo, and our engineers will confirm the interchange before quoting. Every JIC male 74° cone fitting leaves the HENGHUA factory pressure-tested, batch-coded, and backed by a written warranty. Request your quote, crimp data sheet, or drawing pack today, and we will respond within 24 hours.