A fitting used with a union nut and a tailpiece to form a union.
NSN 5935-01-371-8658
NSN 5935-01-012-1850
NSN 6610-01-082-3531
NSN 6130-01-068-3362
NSN 5930-01-494-6491
NSN 5915-01-038-6202
NSN 5996-01-434-4975
NSN 6145-00-437-8960
NSN 5835-01-469-6706
NSN 5990-01-281-7601
NSN 6685-01-407-1171
NSN 5855-01-301-0158