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 5855-00-079-2370
NSN 5945-01-442-6490
NSN 5965-01-208-6903
NSN 6130-01-344-7851
NSN 5935-01-164-9151
NSN 5996-01-183-1695
NSN 6240-01-502-7103
NSN 5996-00-833-2521
NSN 5905-01-329-0684
NSN 5915-01-215-1473
NSN 6105-00-388-6572
NSN 5915-01-055-5643