3040-00-936-3473 (917017-4)
NSN 3040-00-936-3473 (NIIN 00-936-3473) is a differential gear unit in Federal Supply Class 3040, Miscellaneous Power Transmission Equipment — an arrangement of gears in an epicyclic train that connects two shafts in the same line. Manufacturer part number 917017-4 (Northrop Grumman Systems Corporation, CAGE 06481); also referenced as B70491 (Washington Scientific Industries Inc).
NIIN assigned March 1967; DEMIL B (USML, demil required); unit of issue EA (each), $426.40 gov standard price.