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SAE Inverted Flare
The SAE 45° inverted flare male will mate with an SAE 42° inverted flare female only.
The male has straight threads and a 45° inverted flare. The female has straight threads and a 42° inverted flare. The seal is made on the 45° flare seat on the male and the 42° flare seat on the female.
SAE Inverted Flare
Dash
Size |
Nominal
Size (In.) |
Thread
Size |
Male
Thread
O.D.(In.) |
Female
Thread
I.D. (In.) |
| -21 |
1/8 |
5/16 -28 |
5/16 |
9/32 |
| -31 |
3/16 |
3/8 -24 |
3/8 |
21/64 |
| -4 |
1/4 |
7/16 -24 |
7/16 |
25/64 |
| -51 |
5/16 |
1/2 -20 |
1/2 |
29/64 |
| -6 |
3/8 |
5/8 -18 |
5/8 |
37/64 |
| -7 |
7/16 |
11/16 -18 |
11/16 |
5/8 |
| -8 |
1/2 |
3/4 -16 |
3/4 |
45/64 |
| -10 |
5/8 |
7/8 -18 |
7/8 |
13/16 |
| -12 |
3/4 |
1 3/16 -16 |
1 1/16 |
1 |
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