1st gear is antibacklash type
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes gear subassembly, speed decreaser.
Classification: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
NSN 5895-00-665-3991
NSN 5930-01-186-3292
NSN 5920-01-334-7385
NSN 6220-01-178-9041
NSN 5998-01-287-5358
NSN 5920-00-885-0367
NSN 5975-01-003-9803
NSN 5935-00-912-1989
NSN 6135-01-653-6113
NSN 6240-01-322-5521
NSN 6320-01-429-9871
NSN 6320-01-206-8930