Hex Nipple (Male NPT Thread)
| Male NPTThread Size | Dimensions in mm | F-Hex(Inch) | Pressure RatingPSIG (Bar) | Dawsons-TechPart No. | |
| P | E | L | |||
| 1/8 | 4.8 | 27.0 | 7/16 | 9100 (620) | HN-2N |
| 1/4 | 7.1 | 37.0 | 9/16 | 7500 (510) | HN-4N |
| 3/8 | 9.6 | 37.0 | 11/16 | 7200 (490) | HN-6N |
| 1/2 | 11.9 | 48.0 | 7/8 | 6600 (450) | HN-8N |
| 3/4 | 15.7 | 50.0 | 1-1/16 | 6400 (435) | HN-12N |
| 1 | 22.4 | 59.0 | 1-3/8 | 4600 (313) | HN-16N |
Hex Nipple (Male ISO Tapered (BSPT) Thread)
| Male BSPTThread Size | Dimensions in mm | F-Hex(Inch) | Pressure RatingPSIG (Bar) | Dawsons-TechPart No. | |
| P | E | L | |||
| 1/8 | 4.8 | 27.0 | 7/16 | 9100 (620) | HN-2RT |
| 1/4 | 7.1 | 37.0 | 9/16 | 7500 (510) | HN-4RT |
| 3/8 | 9.6 | 37.0 | 11/16 | 7200 (490) | HN-6RT |
| 1/2 | 11.9 | 48.0 | 7/8 | 6600 (450) | HN-8RT |
| 3/4 | 15.7 | 50.0 | 1-1/16 | 6400 (435) | HN-12RT |
| 1 | 22.4 | 59.0 | 1-3/8 | 4600 (313) | HN-16RT |