A fitting used with a union nut and thread piece to form a union.
NSN 5910-00-984-6184
NSN 5905-00-348-9666
NSN 6110-01-504-4377
NSN 5945-00-204-0041
NSN 6130-00-954-6479
NSN 2925-00-887-2073
NSN 5945-01-229-2798
NSN 5930-01-314-2271
NSN 5915-00-831-6143
NSN 6145-01-493-8639
NSN 6105-01-427-2336
NSN 6610-00-236-2219