A fitting used with a union nut and thread piece to form a union.
NSN 6685-01-135-7832
NSN 4140-01-283-5741
NSN 6610-01-067-0228
NSN 6650-00-735-6611
NSN 5895-00-252-8431
NSN 5895-01-604-0835
NSN 6110-01-328-4781
NSN 6240-01-177-3305
NSN 5905-01-301-7643
NSN 5990-01-027-8260
NSN 5998-00-173-9962
NSN 5965-01-020-2581