A fitting used with a union nut and a tailpiece to form a union.
NSN 5960-00-145-9361
NSN 6650-01-382-7842
NSN 5990-01-052-9343
NSN 5920-00-074-4654
NSN 6610-00-236-7175
NSN 5835-01-065-8481
NSN 5905-01-280-3038
NSN 6685-01-250-2669
NSN 6685-01-423-1464
NSN 5905-00-167-0625
NSN 5985-01-371-3449
NSN 5915-01-547-9397