JIC Female Push-On Fitting: 26711-PO Series

Why This JIC Female Push-On Fitting Passes the Compliance Gate

A JIC female push-on fitting joins a male JIC 37° flare stud to a low-pressure hose line without a crimping machine. The 26711-PO series from HENGHUA is a one-piece barbed fitting with a swivel nut: the port end carries a female UNF thread and an internal 74° cone seat per SAE J514 (ISO 8434-2), and the hose end is a barbed tail that pushes into the hose and is secured with a hose clamp. The swivel nut rotates freely, so the hose never twists during installation. The series covers 9 sizes from -04 to -16 with UNF threads from 7/16″-20 to 1-5/16″-12. Every unit is cold-forged from carbon steel, heat-treated, plated, and 100% pressure tested before shipment. For maintenance teams this is the fitting that repairs a JIC low-pressure line on site in minutes, with hand tools only, without winding the hose.

• SAE J514 (ISO 8434-2) JIC female end: swivel nut with UNF thread and an internal 74° cone seat (37° flare), sealing metal-to-metal against a male flare stud, with no O-ring and no thread sealant required.
• Swivel nut design: the nut rotates freely on the body, so the fitting can be oriented and tightened without twisting the hose.
• Barbed push-on hose end: the barbed tail grips the hose bore, and a hose clamp locks the joint, so no crimper, no ferrule, and no crimp data sheet are needed.
• OEM gate check: full dimensional and material conformance per SAE J514, with material test reports (MTR) available for every batch.

Core Advantages

1. Tool-free hose assembly: cut, push, clamp, and the line is ready, which makes field repairs and prototype work fast.
2. Swivel nut JIC end: threads onto any male JIC flare stud per SAE J514, while the hose stays straight and untwisted.
3. -40°C to +120°C operating range: suited to return, drain, and cooler circuits across mobile and industrial equipment.
4. 96 to 1000 h salt spray options: trivalent zinc (96 h), zinc-nickel (720 h), or Dacromet (1000 h), matched to your environment.

A Note on Pressure Class

The 26711-PO series is engineered for low-pressure circuits, not for high-pressure working lines. The barbed hose joint is the rating limit: with a correctly selected hose and clamp, typical working pressure is about 1.0-3.5 MPa (150-500 psi) depending on hose construction and size. Return lines, drain lines, oil cooler circuits, air lines, and fuel lines are the intended duty. For high-pressure JIC working lines, use the crimp version of the 26711 series, which is rated to the full SAE J514 class. We state this limit plainly so your assembly is never pushed past its safe duty.

Technical Specifications

What Is a JIC Female Push-On Fitting?

A JIC female push-on fitting has two ends with two different jobs. The port end is a standard JIC female termination on a swivel nut: a female UNF thread with an internal 74° cone seat. The 74° figure is the included angle of the cone, with each flank 37° from the axis, which is why JIC fittings are also called JIC 37 degree flare fittings. When a male JIC 37° flare stud is tightened into the seat, the two cone faces contact metal-to-metal and the joint seals without O-rings, washers, or sealant.

Two details make this fitting practical on the machine. First, the nut is a swivel: it rotates freely on the body, so you can thread it onto a male stud and tighten it while the hose stays exactly where the routing requires, with no twist. Second, the hose end is a barbed tail that pushes into the hose bore. The barbs grip the inner cover of the hose, and a hose clamp over the outer cover locks the joint. Because there is no ferrule and no crimp, the assembly needs no crimping machine and no crimp data sheet. The 26711-PO series is the female counterpart of the 16711-PO male push-on series, so both ends of a low-pressure JIC line can be terminated with hand tools. It is the practical choice for return, drain, and cooler lines on mobile equipment, for air and fuel lines on machines, and for any low-pressure JIC circuit where a field repair must be finished in minutes.

Dimensional Data and Threads

Full dimension drawings with A, C, and S2 callouts are supplied as PDF and CAD (STEP/DWG) files.

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 and encodes both sizes: the first dash number is the thread, the second is the hose. For example, 26711-08-08PO has a 3/4″-16 thread and suits a -08 (12 mm) push-on hose.

The series covers the push-on segment of the JIC female range. Confirm your hose construction and clamp selection with our engineers before ordering, and the recommended clamp width and torque will be supplied with the order.

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. The swivel nut is machined and tested for free rotation before the fitting is released to packing.

Working Pressure

For high-pressure circuits, select the crimp version of the 26711 series instead. The exact rating for your hose and clamp combination is confirmed by our engineers before shipment.

Pressure-Temperature Operating Envelope

The steel fitting body is not the limiting component in this design; the hose, the clamp, and the hose cover material govern the operating window. Use the hose manufacturer’s derating curve for the system.

Selection and Ordering

The 26711-PO series covers the push-on segment of JIC hydraulic hose fittings, from -04 to -16, and 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 7/8″-14 thread with a -10 hose gives 26711-10-10PO. If your combination is not listed, send us both sizes; a custom JIC female push-on fitting is machined on request.

JIC Thread Size Chart

Use this chart to identify any JIC 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, cone angle, hose size, and barb configuration, then confirm the exact 26711-PO equivalent before you place the order. The service covers JIC 37 degree flare fittings, JIC hydraulic hose fittings, and push-on hose 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 Push-On Procedure

1. Cut the hose square: use a hose cutter or a sharp knife; a square, clean end lets the barbs seat evenly around the bore.
2. Lubricate lightly: apply a thin film of assembly lubricant to the barbs and the hose bore, so the fitting slides in without tearing the inner cover.
3. Push on to the shoulder: push the fitting into the hose until the hose end meets the shoulder; the barbs must be fully covered by the hose.
4. Clamp and verify: fit the hose clamp over the hose at the first barb groove and tighten to the recommended torque, then pull on the hose to confirm the joint holds.

Connecting the JIC Female Swivel End

Clean the internal 74° cone seat and the mating male 37° flare stud with a lint-free cloth. Confirm the swivel nut turns freely on the body before assembly. Hold the fitting body with one hand, thread the nut onto the male stud by hand until the cone faces touch, then tighten the nut to the torque listed for the thread size while holding the body still. JIC 37 degree flare fittings seal by cone contact alone, which is why both cone faces must stay clean and dry. The hose stays in position through the whole tightening sequence, which is exactly what the swivel nut is built for.

Installation Warnings

• ❌ Never use this push-on fitting on high-pressure working lines. The barbed joint is rated for low-pressure duty only, typically up to about 3.5 MPa depending on the hose and clamp.
• ❌ Never assemble without a hose clamp. The barbs alone are not a rated seal; the clamp is part of the joint.
• ❌ Never use the fitting on hose that is not suited to barbed push-on assembly; confirm the hose construction with our engineers.
• ❌ Never reuse a fitting pulled out of a hose, and never assemble over a damaged or cut hose end.
• ❌ Never force the swivel nut with a pipe extension or impact wrench; overtightening distorts the cone seat and damages the nut.
• ❌ Never apply sealant to the 74° cone faces. It hardens, blocks metal-to-metal contact, and contaminates the circuit.
• ✔ After assembly, pressure-test the circuit and inspect the clamp seating for weepage.

OEM Customization and Quality Traceability

Customization Options

• Size and thread customization: non-standard thread and hose combinations, custom barb counts, and special stem lengths 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 → swivel nut rotation test → 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 female push-on fitting? A: It is a one-piece barbed fitting with a JIC female end on a swivel nut, carrying an internal 74° cone seat per SAE J514, and a barbed tail that pushes into a low-pressure hose, secured with a hose clamp. No crimping machine is needed.

Q: What does PO mean in the part number? A: PO designates the push-on (barbed) version of the series, as opposed to the crimp version. The hose end uses barbs and a clamp instead of a ferrule and a crimp.

Q: Why is the nut a swivel? A: The nut rotates freely on the body, so you can thread it onto a male flare stud and tighten it while the hose stays straight and untwisted. This matters most on stiff hose and in tight routing.

Q: What pressure is this fitting rated for? A: The JIC flare end itself conforms to SAE J514, but the assembled barbed line is a low-pressure design, typically rated about 1.0-3.5 MPa (150-500 psi) depending on hose construction, size, and clamp. It is intended for return, drain, cooler, air, and fuel circuits, not high-pressure working lines.

Q: What is the 74° cone seat? A: The 74° figure is the included angle of the internal cone, with each flank 37° from the axis, the same geometry as a male JIC 37° flare stud. The cone faces seal metal-to-metal, so no O-ring or sealant is used.

Q: Can I use this fitting without a clamp? A: No. The clamp is part of the rated joint. Assemble the barbs fully into the hose, then fit the clamp over the hose at the barb groove and tighten to the recommended torque.

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 female push-on 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 fitting leaves the HENGHUA factory pressure-tested, batch-coded, and backed by a written warranty. Request your quote, clamp recommendation, or drawing pack today, and we will respond within 24 hours.