npsm npsl npsh美标管螺纹塞规
conform:fed-std-h28/7 npsm npsl npsh
Gage code |
T.P.I |
Pitch |
Gage code |
T.P.I |
Pitch |
1/16-27 |
27 |
0.941 |
1-11.5 |
11.5 |
2.209 |
1/8-27 |
27 |
0.941 |
1 1/4-11.5 |
11.5 |
2.209 |
1/4-18 |
18 |
1.441 |
1 1/2-11.5 |
11.5 |
2.209 |
3/8-18 |
18 |
1.441 |
2-11.5 |
11.5 |
2.209 |
1/2-14 |
14 |
1.814 |
…… |
…… |
…… |
3/4-14 |
14 |
1.814 |
6 |
8 |
3.175 |