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 6105-01-408-1307
NSN 5960-00-183-8016
NSN 6610-01-266-3447
NSN 6220-00-963-9359
NSN 5996-00-019-8480
NSN 5999-00-398-1583
NSN 5930-01-463-9107
NSN 5905-01-599-0074
NSN 2925-01-094-4771
NSN 5990-00-847-3806
NSN 5910-00-557-0923
NSN 5855-00-446-5921