A fitting used with a union nut and a tailpiece to form a union.
NSN 6110-00-115-2919
NSN 5945-00-269-5375
NSN 5930-01-346-1679
NSN 6110-01-367-2165
NSN 6650-01-301-3959
NSN 6220-00-279-1508
NSN 6320-01-631-7828
NSN 6145-01-067-7796
NSN 6110-00-248-7475
NSN 5910-01-023-8213
NSN 6130-00-246-2038
NSN 6150-00-115-6649