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 6650-01-605-4399
NSN 4140-00-051-3296
NSN 4140-01-223-5194
NSN 5965-00-925-7314
NSN 6110-00-113-1415
NSN 5945-01-015-1554
NSN 5965-01-250-3214
NSN 5985-01-233-0512
NSN 5910-01-449-3132
NSN 6620-00-339-0974
NSN 5985-00-233-7284
NSN 5920-00-012-2000