threaded Full and Half-Couplings
Dimensions threaded Full and Half-Couplings NPS 1/2 – 4 (3000 LBS) according to ASME B16.11
| NPS | End to End A | Outside Diameter D | Minimum Length of Thread | |
| B | J | |||
| 1/2 | 48 | 28 | 10.9 | 13.6 |
| 3/4 | 51 | 35 | 12.7 | 13.9 |
| 1 | 60 | 44 | 14.7 | 17.3 |
| 1 ¼ | 67 | 57 | 17 | 18 |
| 1 ½ | 79 | 64 | 17.8 | 18.4 |
| 2 | 86 | 76 | 19 | 19.2 |
| 2 ½ | 92 | 92 | 23.6 | 28.9 |
| 3 | 108 | 108 | 25.9 | 30.5 |
| 4 | 121 | 140 | 27.7 | 33 |
Dimensions threaded Full and Half-Couplings NPS 1/2 – 4 (6000 LBS) according to ASME B16.11
| NPS | End to End A | Outside Diameter D | Minimum Length of Thread | |
| B | J | |||
| 1/2 | 48 | 38 | 10.9 | 13.6 |
| 3/4 | 51 | 44 | 12.7 | 13.9 |
| 1 | 60 | 57 | 14.7 | 17.3 |
| 1 ¼ | 67 | 64 | 17 | 18 |
| 1 ½ | 79 | 76 | 17.8 | 18.4 |
| 2 | 86 | 92 | 19 | 19.2 |
| 2 ½ | 92 | 108 | 23.6 | 28.9 |
| 3 | 108 | 127 | 25.9 | 30.5 |
| 4 | 121 | 159 | 27.7 | 33 |
General notes:
- Dimensions are in millimeters unless otherwise indicated.
- Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.
Other dimensions of Threaded Fittings according to ASME B16.11