Our Part Number: CL11-060
OEM Part Numbers - HD 23747-71B
Item Description - Transmission Lock Washer for 1971 to 1981 Harley Davidson with 6-spline crankshaft +++ Direct replacement +++ Same quality as OEM.
NOTE: No Longer Available +++ Use 5/8"-18 Thin Nylock Nut number
HW47-720 +++ For added security you can add a stainless steel external tooth serrated lock washer number
HW68-761