| Tube OD | SAE / MSStraight Thread | NPT MalePipe Thread | L | A/F | Dawsons-TechPart No. |
| A |
| Inch | Metric | UN / UNF | P | mm | Inch | Inch | Metric |
| 1/8 | - | 5/16 x 24 | 1/8 x 27 | 28.2 | 7/16 | 37MC-2-2N | - |
| 3/16 | - | 3/8 x 24 | 1/8 x 27 | 29.0 | 7/16 | 37MC-3-2N | - |
| 1/4 | 6 | 7/16 x 20 | 1/8 x 27 | 31.0 | 1/2 | 37MC-4-2N | 37MC-6M-2N |
| 1/4 | 6 | 7/16 x 20 | 1/4 x 18 | 36.0 | 9/16 | 37MC-4-4N | 37MC-6M-4N |
| 1/4 | 6 | 7/16 x 20 | 3/8 x 18 | 36.5 | 11/16 | 37MC-4-6N | 37MC-6M-6N |
| 1/4 | 6 | 7/16 x 20 | 1/2 x 14 | 42.7 | 7/8 | 37MC-4-8N | 37MC-6M-8N |
| 5/16 | 8 | 1/2 x 20 | 1/8 x 27 | 31.0 | 9/16 | 37MC-5-2N | 37MC-8M-2N |
| 5/16 | 8 | 1/2 x 20 | 1/4 x 18 | 36.0 | 9/16 | 37MC-5-4N | 37MC-8M-4N |
| 3/8 | 10 | 9/16 x 18 | 1/8 x 27 | 31.8 | 5/8 | 37MC-6-2N | 37MC-10M-2N |
| 3/8 | 10 | 9/16 x 18 | 1/4 x 18 | 36.3 | 5/8 | 37MC-6-4N | 37MC-10M-4N |
| 3/8 | 10 | 9/16 x 18 | 3/8 x 18 | 36.3 | 11/16 | 37MC-6-6N | 37MC-10M-6N |
| 3/8 | 10 | 9/16 x 18 | 1/2 x 14 | 42.9 | 7/8 | 37MC-6-8N | 37MC-10M-8N |
| 1/2 | 12 | 3/4 x 16 | 1/4 x 18 | 38.9 | 13/16 | 37MC-8-4N | 37MC-12M-4N |
| 1/2 | 12 | 3/4 x 16 | 3/8 x 18 | 38.9 | 13/16 | 37MC-8-6N | 37MC-12M-6N |
| 1/2 | 12 | 3/4 x 16 | 1/2 x 14 | 45.4 | 7/8 | 37MC-8-8N | 37MC-12M-8N |
| 1/2 | 12 | 3/4 x 16 | 3/4 x 14 | 47.0 | 1-1/16 | 37MC-8-12N | 37MC-12M-12N |
| 5/8 | 16 | 7/8 x 14 | 3/8 x 18 | 43.1 | 15/16 | 37MC-10-6N | 37MC-16M-6N |
| 5/8 | 16 | 7/8 x 14 | 1/2 x 14 | 48.0 | 15/16 | 37MC-10-8N | 37MC-16M-8N |
| 5/8 | 16 | 7/8 x 14 | 3/4 x 14 | 49.5 | 1-1/8 | 37MC-10-12N | 37MC-16M-12N |
| 3/4 | 18 | 1-1/16 x 12 | 1/2 x 14 | 52.3 | 1-1/16 | 37MC-12-8N | 37MC-18M-8N |
| 3/4 | 18 | 1-1/16 x 12 | 3/4 x 14 | 52.3 | 1-1/8 | 37MC-12-12N | 37MC-18M-12N |
| 3/4 | 18 | 1-1/16 x 12 | 1 x 11-1/2 | 57.1 | 1-3/8 | 37MC-12-16N | 37MC-18M-16N |
| - | 20 | 1-1/16 x 12 | 3/4 x 14 | 57.1 | 1-3/8 | - | 37MC-20M-12N |
| 7/8 | - | 1-3/16 x 12 | 3/4 x 14 | 53.1 | 1-1/4 | 37MC-14-12N | - |
| 1 | 25 | 1-5/16 x 12 | 3/4 x 14 | 53.5 | 1-3/8 | 37MC-16-12N | 37MC-25M-12N |
| 1 | 25 | 1-5/16 x 12 | 1 x 11-1/2 | 58.4 | 1-3/8 | 37MC-16-16N | 37MC-25M-16N |
Dimensions are for reference only and are subject to change.
