A fitting used with a union nut and thread piece to form a union.
NSN 6130-00-575-4091
NSN 5835-01-174-7700
NSN 6130-01-366-5008
NSN 5905-01-380-9019
NSN 6220-00-633-3296
NSN 6150-00-880-3230
NSN 5999-01-567-6851
NSN 6650-00-170-5095
NSN 6650-00-430-0296
NSN 5925-00-336-9150
NSN 6135-00-448-5642
NSN 5920-01-142-1836