

| Specifications | pitch (mm) |
accuracy | D (mm) |
E (mm) |
Specifications | pitch (mm) |
accuracy | D (mm) |
E (mm) |
| 1/16 NPT | 0.941 | Standard level | 7.9 | 5.6 | 3/4 NPT | 1.814 | Standard level | 26.57 | 20 |
| 1/8in NPT | 0.941 | Standard level | 10.27 | 8 | 1 NPT | 2.209 | Standard level | 33.23 | 25 |
| 1/4 NPT | 1.411 | Standard level | 13.62 | 10 | 1 1/4 NPT | 2.209 | Standard level | 41.99 | 31.5 |
| 3/8 NPT | 1.411 | Standard level | 17.06 | 12.5 | 1 1/2 NPT | 2.209 | Standard level | 48.05 | 35.5 |
| 1/2 NPT | 1.814 | Standard level | 21.22 | 16 | 2 NPT | 2.209 | Standard level | 60.09 | 40 |