A fitting used with a union nut and a tailpiece to form a union.
NSN 6135-01-061-1862
NSN 2925-00-918-0859
NSN 5910-01-104-2160
NSN 5975-00-109-5370
NSN 6610-00-116-5725
NSN 5835-00-238-1516
NSN 5945-00-996-3067
NSN 5950-00-957-0712
NSN 6610-01-348-5719
NSN 5960-01-442-9304
NSN 6130-01-463-2249
NSN 6645-01-333-7497