HYDRAULIC 37 FLARE TO PIPE ADAPTER
PLATED STEEL
90 DEGREE ELBOW
5/8" MALE 37 JIC 37° Flare
3/4" MALE PIPE NPT
NB: Although the NPTF connector and BSPT connector are similar in appearance, the two are not interchangeable.
| Inch size | Dash size | Threads per Inch | Male Thread O.D. (in) | Female thread O.D (in) | ||
| 1⁄8 | -2 | 27 | 13⁄32 | 0.41 | 3⁄8 | 0.38 |
| 1⁄4 | -4 | 18 | 17⁄32 | 0.54 | 1⁄2 | 0.49 |
| 3⁄8 | -6 | 14 | 11⁄16 | 0.68 | 5⁄8 | 0.63 |
| 1⁄2 | -8 | 14 | 27⁄32 | 0.84 | 25⁄32 | 0.77 |
| 3⁄4 | -12 | 14 | 1 1⁄16 | 1.05 | 1 | 0.98 |
| 1 | -16 | 11 1⁄2 | 1 5⁄16 | 1.32 | 1 1⁄4 | 1.24 |
| 1 1⁄4 | -20 | 11 1⁄2 | 1 21⁄32 | 1.66 | 1 19⁄32 | 1.58 |
| 1 1⁄2 | -24 | 11 1⁄2 | 1 29⁄32 | 1.90 | 1 13⁄16 | 1.82 |
| 2 | -32 | 11 1⁄2 | 2 3⁄8 | 2.38 | 2 5⁄16 | 2.3 |
This connection finds many applications in hydraulic systems. Both the JIC male and JIC female have a 37º flare seat and straight threads. The male and female flare seats seal when the straight threads are engaged. The connection is held mechanically by the straight threads of the male and female halves. It is important to note that most SAE threads are identical to SAE 45º flare threads but their seating angles are different.
| 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 |