| Gewinde | Rohraußen - Ø | ganze Länge | halbe Länge |
| NPT 1/8" | 16,0 | 32,0 | 16,0 |
| NPT 1/4" | 20,0 | 35,0 | 17,0 |
| NPT 3/8" | 25,0 | 38,0 | 19,0 |
| NPT 1/2" | 30,0 | 48,0 | 24,0 |
| NPT 3/4" | 35,0 | 51,0 | 25,0 |
| NPT 1" | 44,5 | 60,0 | 30,0 |
| NPT 1 1/4" | 57,0 | 67,0 | 33,0 |
| NPT 1 1/2" | 63,5 | 79,0 | 40,0 |
| NPT 2" | 76,1 | 86,0 | 43,0 |
| NPT 2 1/2" | 92,0 | 92,0 | 46,0 |
| NPT 3" | 108,0 | 108,0 | 54,0 |
| NPT 4" | 140,0 | 121,0 | 60,0 |
| Gewinde | Rohraußen - Ø | ganze Länge | halbe Länge |
| NPT 1/8" | 22,0 | 32,0 | 16,0 |
| NPT 1/4" | 25,0 | 35,0 | 17,0 |
| NPT 3/8" | 32,0 | 38,0 | 19,0 |
| NPT 1/2" | 38,0 | 48,0 | 24,0 |
| NPT 3/4" | 44,0 | 51,0 | 25,0 |
| NPT 1" | 57,0 | 60,0 | 30,0 |
| NPT 1 1/4" | 64,0 | 67,0 | 33,0 |
| NPT 1 1/2" | 76,0 | 79,0 | 40,0 |
| NPT 2" | 92,0 | 86,0 | 43,0 |
| NPT 2 1/2" | 108,0 | 92,0 | 46,0 |
| NPT 3" | 127,0 | 108,0 | 54,0 |
| NPT 4" | 159,0 | 121,0 | 60,0 |
| Alte Bezeichnung | Bezeichnung | Norm |
| St 35.8-3.1-W4 | P235GH-TC1 | EN 10216-2 mit APZ |
| St 52.0-3.1-W4 | S355J2H, P355N | EN 10216-3 mit APZ |
| C 22.8-3.1-W13 | P250GH (ASTM A 105, ASME SA 105) | mit APZ |
| 1.4571-3.1-W2 | Edelstahl | mit APZ |
| 1.4541-3.1-W2 | Edelstahl | mit APZ |
| 1.4301-3.1-W2 | Edelstahl | mit APZ |
Andere Werkstoffe möglich