A fitting used with a union nut and a tailpiece to form a union.
NSN 6320-00-456-0836
NSN 5925-00-242-2583
NSN 5945-01-104-4926
NSN 5945-01-610-9628
NSN 6145-01-166-3714
NSN 5835-01-158-6878
NSN 6240-01-440-9827
NSN 5975-01-253-7561
NSN 6240-00-248-6517
NSN 5999-01-446-6541
NSN 5905-01-438-4821
NSN 6685-00-725-3322