What are JIC hydraulic fittings?
Andrew Mclaughlin
Updated on February 27, 2026
JIC (or Joint Industry Council) fittings, defined by SAE J514, are compression fittings machined with a 37 degree flare seating surface and parallel threads. They are commonly manufactured in nickel alloys, brass, carbon & stainless steel. JIC Fitting hydraulic connections are common in most fluid power systems.
What’s the difference between JIC and an fittings?
JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. SAE 45-degree flare fittings are similar in appearance, but are not interchangeable, though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 share the same thread size.
Do JIC fittings need O rings?
They’re also straight threaded and don’t use an o-ring to seal. Subject: RE: Jic. Pipe thread.
What PSI is JIC rated for?
5000 PSI
Pressure Ratings Working pressures up to 5000 PSI. Working pressures will vary depending on tube and fitting size.
Is an compatible with JIC?
It’s important to note that the AN and JIC specifications are no longer in existence in most cases. The majority of the hydraulic population agrees, the JIC (or SAE) 37 degree fittings are generally interchangeable with AN fittings.
What thread pitch is JIC?
JIC 37° Flare (SAE J514)
| Inch size | Dash size | Female thread O.D (in) |
|---|---|---|
| 1⁄4 | -4 | 13⁄32 |
| 5⁄16 | -5 | 15⁄32 |
| 3⁄8 | -6 | 17⁄32 |
| 1⁄2 | -8 | 11⁄16 |
Can you use JIC with an fittings?
The majority of the hydraulic population agrees, the JIC (or SAE) 37 degree fittings are generally interchangeable with AN fittings. And it’s worth noting that the JIC fittings are a fraction of the price of their true “AN” counterparts.
How to measure JIC fittings?
JIC has UN threads with 37 degree sealing surface. The best way to measure JIC fittings by using UN GO gauge and UN NO-GO gauge as well as callipers. The 37° JIC (Joint Industrial Council) is a reliable, straight thread, single-flare design that is used across the world.
What is JIC thread?
JIC stands for “Joint Industry Council”, which the fittings are named for as defined by the SAE. JIC fittings are flared fittings with a 37-degree chamfer seating surface and straight threads. They are most commonly made of carbon steel, stainless, brass or nickel alloys.
What is a hydraulic fitting?
Hydraulic fittings are parts used to connect hoses, pipes, and tubes in hydraulic systems. Hydraulic equipment generally operates under high pressures and is often not a fixed system. Consequently, hydraulic fittings need to be strong, versatile, and reliable to operate safely and effectively in their respective applications.
