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 5975-00-420-4473
NSN 5920-01-565-8065
NSN 7035-00-800-0770
NSN 6135-00-078-9931
NSN 5960-01-111-7923
NSN 5996-01-398-0037
NSN 6620-00-193-9503
NSN 6620-00-269-5168
NSN 6220-01-534-3244
NSN 5965-01-595-1136
NSN 5930-01-586-3692
NSN 5935-00-446-3723