A fitting used with a union nut and a tailpiece to form a union.
NSN 6135-01-504-6383
NSN 5945-01-252-8662
NSN 5990-01-099-8574
NSN 5835-01-150-6084
NSN 5915-01-642-1671
NSN 5965-01-202-1007
NSN 5950-01-187-8804
NSN 5935-01-408-6415
NSN 7035-01-442-7947
NSN 5975-01-600-0347
NSN 5950-00-868-5112
NSN 6320-01-052-2118