A fitting used with a union nut and a tailpiece to form a union.
NSN 6650-01-416-9869
NSN 6620-00-829-9677
NSN 5910-01-178-4229
NSN 5985-01-127-8104
NSN 4140-01-491-2233
NSN 6320-00-593-0379
NSN 6130-01-474-5190
NSN 6105-00-583-3998
NSN 5960-00-272-9230
NSN 5960-01-437-7422
NSN 6650-00-769-3003
NSN 4140-01-233-1517