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 5910-00-155-4763
NSN 5835-01-511-5337
NSN 5925-00-993-4603
NSN 4140-01-225-3637
NSN 6110-01-144-9535
NSN 5960-01-439-9517
NSN 5935-01-534-7596
NSN 6130-01-025-0523
NSN 5945-01-308-4230
NSN 5915-00-007-3813
NSN 5910-01-173-7580
NSN 5895-00-389-7400