Taper pin holds shaft to disc. Diameter is number 5
A cone-shaped, unthreaded, metallic or nonmetallic item, tapered through its entire length, primarily used to position and hold two or more mating parts in alignment.
NSN 7035-01-095-9322
NSN 6135-01-479-9790
NSN 6110-00-715-9404
NSN 5910-00-321-0229
NSN 5945-01-418-2185
NSN 6650-00-486-7924
NSN 5996-00-346-0665
NSN 6240-00-295-2999
NSN 5930-00-528-7998
NSN 5855-01-354-3463
NSN 5915-00-939-7518
NSN 6105-01-608-7969