Cam, directional control. Notched, ccw
No other part numbers with same form, fit, and function found.
NSN 6610-00-144-7036
NSN 6220-01-172-1277
NSN 6610-01-391-5092
NSN 5935-01-494-6893
NSN 6105-01-158-7618
NSN 6110-00-149-8353
NSN 5950-01-660-0241
NSN 5975-01-411-5626
NSN 5945-00-732-5763
NSN 5920-01-408-5881
NSN 5985-01-062-9133
NSN 5999-01-632-4535