A fitting used with a union nut and a tailpiece to form a union.
NSN 6105-00-945-6072
NSN 6110-01-116-8167
NSN 5925-00-147-0749
NSN 6105-00-241-5835
NSN 5905-00-914-5533
NSN 6150-00-452-1086
NSN 5950-01-623-3752
NSN 6105-00-420-7519
NSN 6620-01-412-0938
NSN 7035-01-059-5114
NSN 6145-00-221-6528
NSN 6650-01-011-3472