No other part numbers with same form, fit, and function found.
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 6645-01-494-3845
NSN 5999-00-351-6755
NSN 6610-01-365-7796
NSN 6650-01-278-6645
NSN 5965-00-222-7394
NSN 5910-01-323-7951
NSN 6620-00-861-3828
NSN 4140-01-525-5979
NSN 5855-01-549-3666
NSN 5910-01-273-9062
NSN 6650-01-064-1372
NSN 5990-00-782-0112