16711-RW JIC Male 74 Degree Cone Fitting

Our JIC male 74 degree cone fitting, series 16711-RW, is a crimp-on hydraulic hose fitting built to the American JIC connection system, with a UNF male thread and a 74 degree outer cone (37 degree half-angle, the same sealing geometry as the JIC 37 degree flare). It connects braided hydraulic hose to JIC male ports on pumps, valves and cylinders made to SAE J514. The range covers 7/16″-20 to 2.1/2″-12 UNF threads, dash size -03 to -32, hose bore DN5 to DN50. Every fitting is 100% dimensionally inspected before shipment.

Compliance and standards:

• SAE J514 (hydraulic tube fittings, 37 degree flare / JIC system)
• ISO 8434-2 (37 degree flare connectors)
• UNF threads (Unified National Fine, inch based)
• SAE J516 (general hydraulic hose fitting design reference)

Why buyers choose this fitting:

• The American standard. JIC (Joint Industry Council) 37 degree flare connections are the most common hydraulic connections in North American machinery. This fitting speaks that language natively.
• 74 degree cone sealing. The 74 degree outer cone (37 degree half-angle) seats into the matching JIC 37 degree flare cone. Metal-to-metal cone contact carries the seal.
• Full UNF thread range. 7/16″-20 through 2.1/2″-12, covering the complete SAE J514 dash grid from -03 to -32.
• Wide temperature range. Rated for -40°C to +100°C continuous duty, verified in our production line tests.

JIC Male 74 Degree Cone Fitting Technical Specifications

The table below lists all 26 sizes of the 16711-RW JIC male 74 degree cone fitting. Dimensions are in millimeters. All threads are UNF (Unified National Fine) with a 74 degree outer cone per SAE J514.

Notes: Dim. A is the assembly reference length from the thread face to the hose-end shoulder. Dim. C is the thread zone length. Hex S1 is the wrench size across flats. The -RW suffix denotes the braided-hose version; for spiral-wound hose, use series 16712-XX-XXRW.

JIC, 37 Degree Flare and the 74 Degree Cone – The Same System

Buyers meet three names for the same American sealing system. JIC is the common name. SAE J514 is the standard number. 37 degree flare describes the sealing angle. This fitting’s 74 degree outer cone is that same geometry measured as the included angle of the cone (2 x 37 degree). When the 74 degree cone seats into the mating 37 degree flare cone, the metal-to-metal contact carries the seal.

This is the classic American sealing philosophy: a precision cone joint that tolerates repeated assembly and disassembly. There is no O-ring and no thread sealant on the cone. Keep the cone surface clean and undamaged, and the seal repeats every time.

Insert Depth and Crimp O.D. – The Two Numbers Engineers Ask For

Insert depth is the length of the barbed tail that enters the hose bore. Crimp O.D. is the outside diameter of the ferrule after crimping. Together they decide whether the assembly holds pressure or leaks at the crimp zone.

HENGHUA publishes the matched insert depth and crimp O.D. for every hose construction we supply, including SAE 100 R1AT, R2AT and EN 853 1SN / 2SN. The values are hose-specific because reinforcement thickness changes the stack-up. Request our crimp data sheet with your hose model and we will return the exact crimp O.D. and die selection within one working day.

Our production testing found that a verified crimp O.D. within the published tolerance (typically +/- 0.2 mm) gives a burst safety margin of 4:1 or higher on the complete assembly. Measure with a digital caliper after every crimp.

Material and Heat Treatment

• Carbon steel (standard): high-strength cold-headed or hot-forged carbon steel (20# / 35# / 45# grades). The tail and cone are case-hardened with a carburizing and quenching process for fatigue resistance. Reference hardness range is HRC 20-28 on the core with a hardened case.
• Surface finish: white zinc or color (yellow) zinc plating with passivation. Optional zinc-nickel and Dacromet coatings are available for higher salt spray requirements.
• Stainless steel (option): 304, 316 or 316L stainless steel for corrosive media and washdown environments.

Pressure and Temperature Ratings

The connection rating follows the SAE J514 37 degree flare reference table below. These are reference values (§) for the fitting connection itself. The final working pressure of a hose assembly is set by the hose construction and the approved crimping specification.

§Reference values per SAE J514 37 degree flare connection classes. Confirm the assembly rating with the HENGHUA crimp data sheet matched to your hose.

Temperature range: -40°C to +100°C for the fitting in continuous service. At elevated temperature, apply the standard SAE J517 style derating to the assembly working pressure. Our technical data sheet includes a pressure-temperature derating chart; contact us and we will send it with your quotation.

Pressure testing: HENGHUA can supply assemblies proof-tested up to 100% of the rated working pressure, with test certificates on request.

How to Select the Right JIC Male 74 Degree Cone Fitting

Selection is a three-step process. First, match the hose bore to the dash size. Second, match the UNF thread to your port. Third, confirm the hose construction version (-RW for braided, 16712 series for spiral).

Part Number Structure

Read any HENGHUA part number in three segments. Example: 16711-08-08RW.

Select by Hose Series

The 16711-RW fitting is designed for braided hydraulic hose. Recommended matching constructions:

• SAE 100 R1AT (one wire braid) – for -03 to -32 sizes
• SAE 100 R2AT (two wire braid) – for -03 to -32 sizes
• EN 853 1SN and 2SN (equivalent European constructions)

Select by Thread Size

The 74 degree cone seats into the mating 37 degree flare cone. All threads are UNF (Unified National Fine):

• Small sizes: 7/16″-20, 1/2″-20, 9/16″-18 (dash -03 to -06)
• Medium sizes: 3/4″-16, 7/8″-14, 1.1/16″-12 (dash -06 to -12)
• Large sizes: 1.3/16″-12, 1.5/16″-12, 1.5/8″-12, 1.7/8″-12, 2.1/2″-12 (dash -10 to -32)

Tightening is via the hex S1 with a standard wrench. The cone provides the seal, so no additional sealing element is required on the cone face.

Cross Reference

This series replaces equivalent SAE J514 JIC 37 degree flare male fittings available in the market. If you hold an OEM part number or a competitor catalog number, send it to our sales team. We confirm the direct replacement within 24 hours, including thread, dash size, hex and insert depth checks.

Packaging and Logistics

Assembly Guide: Four Steps to a Safe Hose Assembly

Follow this process for every crimped assembly. It applies to every JIC male 74 degree cone fitting size from dash -03 to -32. Skipping one step is the most common cause of early fitting failure.

Step 1 – Cut the hose square. Use a sharp hose cutter. A square cut face lets the fitting seat evenly inside the hose. A beveled or ragged cut leaves voids that become leak paths.

Step 2 – Mark the insert depth. Measure the insert depth from the HENGHUA crimp data sheet. Mark a line on the hose cover at that distance. The mark must remain visible after insertion.

Step 3 – Lubricate and insert. Apply a thin layer of compatible assembly lubricant to the hose bore and the barbed tail. Push the fitting in with a twisting motion until the depth mark aligns with the tail end. Stop at the mark. Do not force past it.

Step 4 – Crimp and verify. Select the correct die set for your hose and fitting size. Crimp in one continuous stroke. After crimping, measure the crimp O.D. with a digital caliper and compare it with the tolerance on the crimp data sheet. Record the value on your quality log. A correct crimp O.D. is the difference between a 10-year assembly and a field failure.

Safety Warnings – Read Before Crimping

• Never mix brands. Hoses and fittings from different manufacturers may share the same dimensions but use different crimp parameters. Always use a matched hose, fitting and crimp data sheet.
• Never seal the 74 degree cone with tape. The cone seats by metal-to-metal 37 degree flare contact. Thread sealant tape or paste on the cone surface destroys the seal geometry.
• Do not confuse JIC with SAE O-ring boss (ORB). JIC seals at the 37 degree flare cone. ORB seals with an O-ring at the thread root. Never substitute one for the other.
• Tighten to spec. Use the hex S1 and tighten to the torque value on the data sheet. Over-tightening distorts the cone. Under-tightening causes vibration loosening.
• Never reuse a crimped fitting. Once crimped, the ferrule zone is work-hardened. A re-crimp cannot restore the original grip.

OEM Customization and Quality Traceability

HENGHUA supplies not only standard sizes but also fully customized JIC male 74 degree cone fitting solutions for OEM programs.

Customization Services

• Thread customization. Non-standard thread lengths, special threads, and custom tail lengths for your hose construction.
• Surface treatment customization. White zinc, color zinc, zinc-nickel and Dacromet coatings, matched to your salt spray requirement from 72 hours up to 720+ hours.
• Laser marking. Your logo, part number and batch code laser-marked on the hex for full traceability.
• Packaging customization. Private-label boxes, barcode labels and mixed-size kits per your BOM.

Quality Traceability

Every HENGHUA batch carries a traceable batch number. The traceability chain covers incoming material certificates, heat treatment records, dimensional inspection reports and final packing lists. Material test reports (MTR) and third-party inspection (BV, SGS or equivalent) can be arranged before shipment. Request our sample batch and audit our quality documentation – we are confident in what it shows.

Frequently Asked Questions

What is a JIC male 74 degree cone fitting?

It is a hydraulic fitting with a UNF male thread and a 74 degree outer cone (37 degree half-angle). The cone seats into the mating 37 degree flare cone and seals by metal-to-metal contact. The system follows SAE J514 and ISO 8434-2.

Is JIC the same as 37 degree flare?

Yes. JIC is the common name, SAE J514 is the standard number, and 37 degree flare describes the sealing angle. The 74 degree cone is that same geometry measured as the included angle.

What is the difference between JIC and SAE O-ring boss (ORB)?

JIC seals at the 37 degree flare cone. ORB seals with an O-ring at the thread root. The two are not interchangeable, even on similar dash sizes.

Which hose works with the 16711-RW fitting?

The 16711-RW version is designed for braided hydraulic hose such as SAE 100 R1AT, R2AT and EN 853 1SN / 2SN. For spiral-wound hose, use the 16712 series.

Do you supply stainless steel versions?

Yes. 304, 316 and 316L stainless steel versions are available for the full size range, with the same dimensions and crimp behavior.

What is the minimum order quantity?

Stock sizes start from 100 pcs. Customized versions start from 500 pcs per size. OEM annual contracts can be discussed directly with our factory team.

Get a Quote for Your JIC Male 74 Degree Cone Fitting

Tell us your hose model, thread size and annual volume. We reply with a formal quotation, the matching crimp data sheet and our lead time within one working day. For urgent projects, our engineers support you online with crimp parameter verification.