A fitting used with a union nut and a tailpiece to form a union.
NSN 6320-00-539-9283
NSN 6130-00-216-9214
NSN 5950-01-322-5968
NSN 5910-01-386-3191
NSN 5910-00-862-3552
NSN 4140-01-217-4783
NSN 5835-01-284-5689
NSN 5920-00-522-4233
NSN 5905-01-053-5295
NSN 5910-00-571-0473
NSN 5945-01-620-3503
NSN 5930-00-077-8480