| Part No. | Tube O.D. | 1 Female OFS | C Hex | L Length |
| FS-318-04 FS-318-06 | 1/4 3/8 | 9/16 - 18 11/16 - 16 | 11/16 13/16 | 0.59 0.67 |
| FS-318-08 FS-318-10 | 1/2 5/8 | 13/16 - 16 1 - 14 | 15/16 1 1/8 | 0.79 0.94 |
| FS-318-12 FS-318-16 | 3/4 1” | 1 3/16 - 12 1 7/16 - 12 | 1 3/8 1 5/8 | 1.04 1.08 |
| FS-318-20 FS-318-24 | 1 1/4 1 1/2 | 1 11/16 - 12 2 - 12 | 1 7/8 2 1/4 | 1.08 1.08 |