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 7035-01-194-9482
NSN 6650-01-104-6139
NSN 5835-00-245-9453
NSN 5999-00-067-5851
NSN 5935-01-479-9025
NSN 5930-01-424-0276
NSN 7035-01-268-0933
NSN 5910-01-304-5783
NSN 4140-01-160-7699
NSN 5910-00-554-1422
NSN 5855-00-189-6066
NSN 5910-01-364-0317