A fitting with pipe threads having a female connection inside of a male connection, used in conjunction with another fitting, to connect in the same line, two pipes of different sizes.
NSN 5999-01-597-7813
NSN 6650-01-090-6133
NSN 6130-01-353-7784
NSN 5920-01-545-5160
NSN 2925-01-424-0235
NSN 4140-01-077-3981
NSN 6610-00-242-3160
NSN 7035-01-068-4175
NSN 6135-01-278-9717
NSN 4140-01-242-0295
NSN 5935-00-419-2530
NSN 6685-01-634-0611