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 5975-01-137-1798
NSN 6610-01-023-1918
NSN 5960-00-840-8976
NSN 5998-01-382-1282
NSN 6620-01-325-6295
NSN 5990-01-656-7047
NSN 6620-00-349-4703
NSN 5925-01-597-5667
NSN 5910-01-172-9675
NSN 6150-01-555-3458
NSN 5996-00-107-5357
NSN 6650-01-372-6013