A fitting used with a union nut and thread piece to form a union.
NSN 5925-00-225-1831
NSN 6150-01-105-2829
NSN 5925-00-262-5651
NSN 6620-01-323-1287
NSN 5990-01-027-8260
NSN 6650-00-045-4362
NSN 5920-00-240-7953
NSN 5935-01-119-7817
NSN 5935-01-502-7015
NSN 5925-00-852-2295
NSN 6130-00-830-9974
NSN 6240-01-256-0859