A fitting used with a union nut and thread piece to form a union.
NSN 6240-01-579-6694
NSN 5935-01-645-1074
NSN 6220-01-586-5625
NSN 5905-01-599-4454
NSN 5996-01-331-8810
NSN 5999-01-208-5019
NSN 6650-01-439-4639
NSN 5835-01-104-4520
NSN 6610-00-367-9603
NSN 5950-00-683-8304
NSN 5996-01-529-2270
NSN 6105-01-023-2113