A fitting used with a union nut and thread piece to form a union.
NSN 5930-00-305-2137
NSN 5985-01-343-3021
NSN 4140-01-201-4359
NSN 7035-01-372-5006
NSN 6685-01-336-5072
NSN 6645-00-042-9587
NSN 6685-01-152-6003
NSN 5895-00-086-4425
NSN 6150-01-254-3625
NSN 5960-01-107-2549
NSN 5950-00-723-6363
NSN 6610-01-116-2527