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 5835-00-958-6231
NSN 5855-01-159-1654
NSN 5965-00-575-4089
NSN 5985-01-521-9783
NSN 6685-01-634-0611
NSN 7035-01-341-8835
NSN 5905-01-521-3496
NSN 5960-00-786-3219
NSN 6145-00-869-6469
NSN 4140-01-412-9420
NSN 6240-00-809-4977
NSN 5905-01-150-9475