Maintains constant chain tension on main drive chain
NSN 6320-01-246-4390
NSN 6110-01-388-2389
NSN 6645-00-679-8203
NSN 5920-00-422-5517
NSN 2925-00-215-4954
NSN 6105-01-654-1000
NSN 6110-01-280-5390
NSN 6220-01-522-1077
NSN 6150-01-391-7366
NSN 6110-00-181-5634
NSN 6105-00-023-7160
NSN 6145-01-491-7530