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 5998-00-984-1972
NSN 5910-01-465-7442
NSN 5990-01-080-0097
NSN 5985-01-359-1821
NSN 5975-00-297-3940
NSN 5985-00-096-2929
NSN 5945-00-517-9566
NSN 6220-01-363-8248
NSN 4140-01-280-3872
NSN 5915-01-360-2526
NSN 5999-01-023-9181
NSN 5945-01-467-2242