SAE J514 37° Flare (also known as JIC)
This is a very common connection in Hydraulic fluid power applications. Both the JIC male and JIC female fittings have 37° seat with straight threads. The seal takes place between the male flare and female cone seat. The straight threads of the each half hold the connection together mechanically.
Note: While most SAE J514 threads look identical to SAE 45º flare threads, their seating angles do not match.
Inch size | Dash size | Thread Size | Male Thread O.D. (in) | Female thread O.D (in) | ||
1⁄8 | -2 | 5⁄16 - 24 | 5⁄16 | 0.31 | 9⁄32 | 0.27 |
3⁄16 | -3 | 3⁄8 - 24 | 3⁄8 | 0.38 | 11⁄32 | 0.34 |
1⁄4 | -4 | 7⁄16 - 20 | 7⁄16 | 0.44 | 13⁄32 | 0.39 |
5⁄16 | -5 | 1⁄2 - 20 | 1⁄2 | 0.50 | 15⁄32 | 0.45 |
3⁄8 | -6 | 9⁄16 - 18 | 9⁄16 | 0.56 | 17⁄32 | 0.51 |
1⁄2 | -8 | 3⁄4 - 16 | 3⁄4 | 0.75 | 11⁄16 | 0.69 |
5⁄8 | -10 | 7⁄8 - 14 | 7⁄8 | 0.88 | 13⁄16 | 0.81 |
3⁄4 | -12 | 1 1⁄16 - 12 | 11⁄16 | 1.06 | 1 | 0.98 |
7⁄8 | -14 | 1 3⁄16 - 12 | 1 3⁄16 | 1.19 | 1 1⁄8 | 1.10 |
1 | -16 | 1 5⁄16-12 | 1 5⁄16 | 1.31 | 1 1⁄4 | 1.23 |
1 1⁄4 | -20 | 1 5⁄8 - 12 | 1 5⁄8 | 1.63 | 1 9⁄16 | 1.54 |
1 1⁄2 | -24 | 1 7⁄8 - 12 | 1 7⁄8 | 1.88 | 1 13⁄16 | 1.79 |
2 | -32 | 2 1⁄2 - 12 | 2 1⁄2 | 2.50 | 2 7⁄16 | 2.42 |
