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15 Union & Reducing Union Connectors
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| Tube O.D. | Thd. | Thread | F ±.010 | G ±1/64 | H ±1/64 | L +.005/ -.010 | M | N ±1/64 | Part No |
| 1/4" - 1/8" | 7/16-20 | 5/16-24 | .109 | 15/32 | 5/8 | 1/8" | .175 - .180 | 7/16" | 15-4-2 |
| 5/16" - 1/4" | 1/2-20 | 7/16-20 | .170 | 31/64 | 11/16 | 11/16" | .330 - .335 | 15/32" | 15-5-4 |
| 3/8" - 1/4 | 5/8-20 | 7/16-20 | .170 | 19/32 | 13/16 | 13/16" | .330 - .335 | 15/32" | 15-6-4 |
| 1/2" - 3/8" | 3/4-20 | 5/8-20 | .250 | 11/16 | 15/16 | 15/16" | .460 - .465 | 19/32" | 15-8-6 |
| 5/8" - 3/8" | 7/8-20 | 5/8-20 | .250 | 45/64 | 1-1/16 | 1-1/16" | .460 - .465 | 19/32" | 15-10-6 |
| 5/8" - 1/2" | 7/8-20 | 3/4-20 | .375 | 45/64 | 1-1/16 | 1-1/16" | .590 - .595 | 11/16" | 15-10-8 |
| 7/8" - 5/8" | 1-3/16-16 | 7/8-20 | .500 | 7/8 | 1-7/16 | 1-7/16" | .715 - .720 | 45/64" | 15-14-10 |
