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 2925-00-288-1394
NSN 5835-00-572-7445
NSN 7035-01-441-9509
NSN 5920-01-413-1608
NSN 7035-00-417-2967
NSN 5965-01-100-0942
NSN 5990-01-386-5561
NSN 5950-00-984-2536
NSN 5999-01-343-0874
NSN 6105-01-534-8992
NSN 6135-01-447-4001
NSN 2925-01-422-1542