A gear with teeth formed on the inner surface of a cylinder or cone.
Classification: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
NSN 6685-01-441-6886
NSN 6130-01-417-2165
NSN 5920-01-023-5387
NSN 6130-00-225-9980
NSN 2925-01-166-4589
NSN 6220-01-050-9806
NSN 6620-00-401-8489
NSN 5950-00-128-2258
NSN 6645-00-518-2068
NSN 5925-01-415-0261
NSN 6135-01-421-3189
NSN 5999-01-519-4971