A fitting used with a union nut and a tailpiece to form a union.
NSN 6650-00-361-1808
NSN 6220-01-634-0660
NSN 6150-00-977-7675
NSN 5935-01-538-8773
NSN 5935-01-467-0664
NSN 6135-00-416-2898
NSN 4140-01-583-3203
NSN 5999-00-995-1438
NSN 5999-00-979-4269
NSN 6105-01-390-6386
NSN 6650-00-157-9403
NSN 5975-01-256-4247