A fitting used with a union nut and a tailpiece to form a union.
NSN 5835-01-214-0522
NSN 6620-00-808-7277
NSN 6105-01-543-3650
NSN 5905-01-360-3031
NSN 7035-00-834-2090
NSN 5930-01-389-9583
NSN 5945-00-549-3173
NSN 6610-00-405-6461
NSN 5835-00-415-6421
NSN 6130-00-954-0103
NSN 5925-00-169-4513
NSN 5975-01-137-1798