AN/JIC 37° defined by the SAE J514 and MIL-F-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.
The SAE J514 standard replaces the MS16142 military specification, although some tooling is still listed under MS16142. JIC fittings are dimensionally identical to
AN (Aeronautical-Navy) fittings,but are produced to less exacting tolerances and are generally less costly.JIC fitting systems have three components that make a
tubing assembly: fitting, flare nut, and sleeve. As with other flared connection systems, the seal is achieved through metal-to-metal contact between the finished
surface of the fitting nose and the inside diameter ofthe flared tubing. The sleeve is used to evenly distribute the compressive forces of the flare nut to the
flared end of the tube. Materials commonly used to fabricate JIC fittings include Aluminum, forged carbon steel, forged stainless steel, forged brass, machined brass, Monel
and nickel-copper alloys.
|
| JIC Thread Specifications |
| Thrd Size |
Nom. Size
(in) |
# of Thrds
per
Inch |
Male
Thread O.D.
(in) |
| 2 |
1/8 |
24 |
5/16 |
| 3 |
3/16 |
24 |
3/8 |
| 4 |
1/4 |
20 |
7/16 |
| 5 |
5/16 |
20 |
1/2 |
| 6 |
3/8 |
18 |
9/16 |
| 8 |
1/2 |
16 |
3/4 |
| 10 |
5/8 |
14 |
7/8 |
| 12 |
3/4 |
12 |
1-1/16 |
| 14 |
7/8 |
12 |
1-3/16 |
| 16 |
1 |
12 |
1-5/16 |
| 20 |
1-1/4 |
12 |
1-5/8 |
| 24 |
1-1/2 |
12 |
1-7/8 |
| 32 |
2 |
12 |
2-1/2 |
|
