37° Flare (JIC) Threads (Stainless) Commonly referred to as 37° JIC, this connection is widely used in hydraulic systems. When the straight threads are engaged, the 37° male seat seals on the 37° female flare seat. Most thread sizes are identical to the 45° SAE connection as noted (*) below. Care must be taken not to confuse these two connectors, which have different seat angles.
Dash Size
Inch Size
Thread Size
Male Thread (O.D.)
Female Thread (I.D.)
12
3/4"
3/4-14
1.06
.98
16
1"
1 5/16-12
1.31
1.22
20
1 1/4"
1 5/8-12
1.63
1.54
24
1 1/2"
1 7/8-12
1.88
1.79
32
2"
2.5-12
2.5
2.41
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