A fitting used with a union nut and a tailpiece to form a union.
NSN 5910-00-186-9441
NSN 6620-01-195-6675
NSN 6645-00-895-1515
NSN 5960-00-131-6744
NSN 6135-01-110-9470
NSN 4140-00-140-7587
NSN 6145-00-239-1304
NSN 6320-01-383-9979
NSN 5835-01-363-4527
NSN 6240-00-279-8716
NSN 5935-01-440-8815
NSN 5905-01-417-6956