A fitting used with a union nut and a tailpiece to form a union.
NSN 6320-01-212-8749
NSN 6645-01-023-8020
NSN 6150-01-010-3727
NSN 6110-01-512-7361
NSN 4140-01-295-7327
NSN 6145-01-293-5463
NSN 7035-00-104-7613
NSN 6130-01-408-7504
NSN 5960-01-641-5493
NSN 6150-00-222-7940
NSN 6135-01-328-0639
NSN 6320-00-284-1524