What Is a Jic Hose Fitting?
JIC fittings, defined by the SAE J514 and MIL-DTL-18866 standards, are a type of flare fitting machined with a 37-degree flare seating surface. JIC (Joint Industry Council) fittings are widely used in fuel delivery and fluid power applications, especially where high pressure (up to 10,000 psi) is involved.

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In this way, are JIC and an fittings the same?

JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. 45-degree flare fittings are similar in appearance, but are not interchangeable. Here's where people get confused.

Likewise, how do you determine your fitting size? Measure the Outside Diameter (OD) of your pipe or pipe fitting:

  1. Wrap a string around the pipe.
  2. Mark the point where the string touches together.
  3. Use a ruler or measuring tape to find the length between the tip of the string and the mark you made (circumference)
  4. Divide the circumference by 3.14159.

Also asked, how do you measure JIC fittings?

Place the gauge on the threads until the fit is snug. Match your measurements with the tables in this guide. First measure the port hole diameter using a caliper. Next, measure the longest bolt hole spacing from center to center or measure the flange head diameter.

What size is #6 JIC fitting?

JIC 37° Flare & Uno (O Ring Boss) Threads

MALE THREAD OD & PITCH DASH SIZE FEMALE THREAD ID
inch – TPI mm
5/16 – 24 UNF -05 6,9
3/8 – 24 UNF -06 8,5
7/16 – 20 UNF -07 9,9
Related Question Answers

What is 37 degree flare used for?

Defined by MIL-F-18866 and SAE J514 standards, these flare fittings have been machined to have a 37° flare seating surface. These fittings are most commonly used in fluid power and fuel delivery applications, especially those using high pressure.

Do JIC fittings need sealant?

Fitting thread sealant. It cures four times faster than anaerobic sealants on stainless steel or inert metals. It works on any size NPT, O-ring boss, or JIC fitting, and prevents rotation and leakage. It seals mating surfaces of flare-style fittings, filling scratches and surface imperfections.
Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.