| Male NPTThread Size | Reduced Male NPTThread Size | Dimensions in mm | F-Hex(Inch) | Pressure RatingPSIG (Bar) | Dawsons-TechPart No. |
| P1 | P2 | E | L |
| 1/4 | 1/8 | 4.8 | 31.0 | 9/16 | 7500 (510) | HRN-4N-2N |
| 3/8 | 1/8 | 4.8 | 31.8 | 11/16 | 7200 (490) | HRN-6N-2N |
| 3/8 | 1/4 | 7.1 | 36.3 | 11/16 | 7200 (490) | HRN-6N-4N |
| 1/2 | 1/8 | 4.8 | 37.3 | 7/8 | 6600 (450) | HRN-8N-2N |
| 1/2 | 1/4 | 7.1 | 41.9 | 7/8 | 6600 (450) | HRN-8N-4N |
| 1/2 | 3/8 | 9.6 | 41.9 | 7/8 | 6600 (450) | HRN-8N-6N |
| 3/4 | 1/4 | 7.1 | 41.9 | 1-1/16 | 6400 (435) | HRN-12N-4N |
| 3/4 | 3/8 | 9.6 | 41.9 | 1-1/16 | 6400 (435) | HRN-12N-6N |
| 3/4 | 1/2 | 11.9 | 46.7 | 1-1/16 | 6400 (435) | HRN-12N-8N |
| 1 | 1/4 | 7.1 | 49.3 | 1-3/8 | 4600 (315) | HRN-16N-4N |
| 1 | 3/8 | 9.6 | 49.3 | 1-3/8 | 4600 (315) | HRN-16N-6N |
| 1 | 1/2 | 11.9 | 54.1 | 1-3/8 | 4600 (315) | HRN-16N-8N |
| 1 | 3/4 | 15.7 | 54.1 | 1-3/8 | 4600 (315) | HRN-16N-12N |
Dimensions are for reference only and are subject to change.
