A fitting used with a union nut and a tailpiece to form a union.
NSN 5960-01-431-4291
NSN 5960-01-137-2329
NSN 6240-00-364-0850
NSN 6150-01-170-1109
NSN 6130-01-583-3213
NSN 5945-01-223-0482
NSN 6105-00-232-9788
NSN 6220-00-054-5741
NSN 5905-01-210-7267
NSN 6135-00-284-1406
NSN 6645-00-100-4931
NSN 5920-01-364-9164