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SAE J514, 37 Flare (JIC)

SAE J514, 37 Flare (JIC)

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.

Click here for a guide on how to properly measure threads.

Click here for a printable, actual size 37 flare fitting profiles. You will need to have Adobe Reader to view and print the file.


SAE J514, 37 JIC Flare
Dash
Size
Inch
Size
Thread Male
Thread
O.D.
mm
Male
Thread
O.D.
inches
Female
Thread
I.D.
mm
Female
Thread
I.D.
inches
2 1/8 5/16-24* 7.9 .31 6.9 .27
3 3/16 3/8-24* 9.6 .38 8.6 .34
4 1/4 7/16-20* 11.2 .44 9.9 .39
5 5/16 1/2-20* 12.7 .50 11.4 .45
6 3/8 9/16-18 14.2 .56 12.9 .51
8 1/2 3/4-16* 19.0 .75 17.0 .67
10 5/8 7/8-14* 22.3 .88 20.3 .80
12 3/4 1 1/16-12 26.9 1.06 24.9 .98
14 7/8 1 3/16-12 30.0 1.18 27.7 1.09
16 1 1 5/16-12 33.3 1.31 31.0 1.22
20 1 1/4 1 5/8-12 41.4 1.63 39.1 1.54
24 1 1/2 1 7/8-12 47.7 1.88 45.5 1.79
32 2 2 -12 63.5 2.50 61.2 2.41

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