A fitting used with a union nut and thread piece to form a union.
NSN 6240-01-085-7216
NSN 5999-01-144-5560
NSN 6650-01-645-2850
NSN 5915-01-241-3712
NSN 6145-01-366-9990
NSN 6685-01-187-8463
NSN 5998-01-228-7633
NSN 5925-00-102-8010
NSN 7035-01-582-2242
NSN 5935-01-451-3210
NSN 5910-01-350-3252
NSN 5985-01-370-4120