SAE J512, 45° Flare (SAE)

The SAE 45° flare connectors seal in the same manner and are similar to the 37° connectors except for the flare angle. When the straight threads are engaged, the 45° male seat seals on the 45° female flare seat. 45° connectors are commonly found in automotive and refrigeration applications, on brass adapters, and are generally used at lower pressures than 37° JIC connectors. Check the threads and flares carefully to make positive identification.

    

Dash
Size
Inch
Size
Thread
per in
Male
Thread OD
mm         in

Female Thread ID
mm         in

2
3
4
5
6
8
10
12
14
16
1/8”
3/16”
1/4”
5/16”
3/8”
1/2”
5/8”
3/4”
7/8”
1”
24
24
20
20
18
16
14
12
12
12
7.9    0.31
9.6    0.38
11.2    0.44
12.7    0.50
15.7    0.62
19.0    0.75
22.3    0.88
26.9    1.06
31.7    1.25
35.0    1.38
6.9    0.27
8.6    0.34
9.9    0.39
11.4    0.45
14.2    0.56
17.0    0.67
20.3    0.80
24.9    1.09
29.5    1.16
32.5    1.28

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