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 4140-01-276-0020
NSN 4140-01-013-2536
NSN 6135-00-196-5267
NSN 5998-01-139-7382
NSN 5905-01-067-8164
NSN 7035-01-123-8723
NSN 5945-01-426-6563
NSN 5920-01-514-4095
NSN 7035-01-403-2841
NSN 6130-01-647-3122
NSN 6620-01-290-2973
NSN 2925-01-446-6976