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 6620-00-844-4363
NSN 6650-00-877-6972
NSN 5999-01-358-8593
NSN 5945-00-108-9730
NSN 6110-01-220-5888
NSN 6105-00-683-5459
NSN 5910-01-513-2193
NSN 5835-00-707-6266
NSN 5910-00-022-9178
NSN 7035-01-382-2741
NSN 6320-01-476-7702
NSN 5835-00-617-3578