A fitting used with a union nut and a tailpiece to form a union.
NSN 7035-00-349-8571
NSN 6220-00-727-5274
NSN 6130-01-605-2047
NSN 5945-00-403-8826
NSN 6150-01-132-5803
NSN 5998-01-369-8300
NSN 6610-01-512-3248
NSN 6650-01-561-9223
NSN 6105-01-376-9012
NSN 6610-01-543-5705
NSN 5915-01-381-0746
NSN 5925-00-155-2587