An item specifically designed to be inserted between (2) two disk, clutch. It has a centrally located hole and its outer peripheral may include lugs or slot and the like.
NSN 7035-00-631-3782
NSN 6610-01-127-0724
NSN 5960-01-027-8833
NSN 6130-01-203-1955
NSN 6150-00-891-7922
NSN 5965-00-064-8209
NSN 5990-00-887-0147
NSN 5945-00-982-3720
NSN 5855-01-533-3888
NSN 5855-01-437-3630
NSN 4140-00-105-3083
NSN 2925-00-863-8578