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 5915-00-915-5733
NSN 4140-00-901-8216
NSN 6320-01-323-1947
NSN 5930-01-608-4314
NSN 5835-01-548-7454
NSN 6150-00-025-9169
NSN 6320-00-456-0836
NSN 7035-01-063-0453
NSN 5920-00-351-8428
NSN 5950-01-356-4241
NSN 5915-01-221-3915
NSN 6240-01-424-6374