A fitting used with a union nut and a tailpiece to form a union.
NSN 7035-00-703-3535
NSN 5930-01-028-8486
NSN 5990-01-364-0813
NSN 6145-00-267-0837
NSN 5998-00-258-3142
NSN 4140-00-247-4773
NSN 6650-00-486-7924
NSN 5985-01-349-3268
NSN 6220-00-992-5889
NSN 5996-01-542-9499
NSN 6320-01-116-9866
NSN 5915-01-055-5643