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 5930-01-618-5330
NSN 6320-01-564-0893
NSN 6650-00-018-7298
NSN 6220-01-189-1373
NSN 6610-00-535-1372
NSN 6320-01-366-5157
NSN 5950-01-057-3255
NSN
NSN 6650-01-027-1181
NSN 5930-01-158-0009
NSN 5990-00-458-9643
NSN 5998-01-068-4992