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 5945-01-223-5753
NSN 6240-00-447-0244
NSN 5990-01-078-1294
NSN 5925-01-058-1853
NSN 5910-01-462-3561
NSN 6645-00-725-6864
NSN 5998-00-505-4303
NSN 5975-00-535-9720
NSN 7035-01-110-9355
NSN 5855-01-100-3272
NSN 5920-01-555-1079
NSN 7035-01-284-5043