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 6130-00-883-4712
NSN 6145-01-329-2018
NSN 4140-01-033-7819
NSN 4140-00-060-4052
NSN 5910-00-273-3862
NSN 5950-01-181-5973
NSN 5905-01-003-8276
NSN 6220-00-255-5652
NSN 6110-01-032-2899
NSN 5905-01-278-2528
NSN 5935-01-529-8946
NSN 5920-00-101-8266