| Part No. | 1 Male NPTF | 2 Female NPTF | N Length | N1 Length | Y Flats | Operating Pressure | ||||||
| 5503-02-02-4 5503-04-04-4 | 1/8 - 27 1/4 - 18 | 1/8 - 27 1/4 - 18 | 0.72 1.05 | 0.47 0.63 | 9/16 3/4 | 6,000 6,000 | ||||||
| 5503-06-06-4 5503-08-08-4 | 3/8 - 18 1/2 - 14 | 3/8 - 18 1/2 - 14 | 1.06 1.34 | 0.72 0.91 | 7/8 1 1/16 | 4,500 3,000 | ||||||
| 5503-12-12-4 5503-16-16-4 | 3/4 - 14 1 - 11 1/2 | 3/4 - 14 1 - 11 1/2 | 1.38 1.72 | 0.97 1.12 | 1 5/16 1 5/8 | 3,000 1,800 | ||||||
| 5503-20-20-4 5503-24-24-4 | 1 1/4 - 11 1/2 1 1/2 - 11 1/2 | 1 1/4 - 11 1/2 1 1/2 - 11 1/2 | 1.80 2.06 | 1.63 1.69 | 1 7/8 2 9/16 | 1,500 1,500 | ||||||