A fitting used with a union nut and a tailpiece to form a union.
NSN 5945-00-837-8367
NSN 2925-01-048-8464
NSN 5935-01-634-0668
NSN 5915-01-435-2549
NSN 6130-01-079-1241
NSN 6220-01-487-7079
NSN 5855-01-234-5346
NSN 6135-01-445-6589
NSN 5945-01-619-2943
NSN 5998-01-656-4905
NSN 6145-01-169-9657
NSN 6130-00-908-1981