Swivel Union Tee (Swivel Nut to Swivel Nut)
| Tube OD | SAE / MSStraight Thread | L | A/F-1 | A/F-2 | Dawsons-TechPart No. | ||
| B | |||||||
| Inch | Metric | UN / UNF | mm | Inch | Inch | Inch | Metric |
| 1/4 | 6 | 7/16 x 20 | 25.4 | 7/16 | 9/16 | 37SUT-4 | 37SUT-6M |
| 3/8 | 10 | 9/16 x 18 | 31.8 | 9/16 | 11/16 | 37SUT-6 | 37SUT-10M |
| 1/2 | 12 | 3/4 x 16 | 35.0 | 3/4 | 7/8 | 37SUT-8 | 37SUT-12M |
| 5/8 | 16 | 7/8 x 14 | 41.2 | 3/4 | 1 | 37SUT-10 | 37SUT-16M |
| 3/4 | 18 | 1-1/16 x 12 | 44.5 | 1-1/16 | 1-1/4 | 37SUT-12 | 37SUT-18M |
| 1 | 25 | 1-5/16 x 12 | 50.8 | 1-3/16 | 1-1/2 | 37SUT-16 | 37SUT-25M |