A fitting used with a union nut and a tailpiece to form a union.
NSN 5925-00-374-1690
NSN 5925-00-983-5666
NSN 6320-00-405-2348
NSN 5915-01-012-0791
NSN 5915-01-358-4311
NSN 5960-01-191-6249
NSN 5910-01-278-5717
NSN 5920-00-647-1065
NSN 5935-01-301-4826
NSN 6645-01-383-6514
NSN 5945-01-116-8989
NSN 6110-01-541-4930