This is a brand new clutch securing main shaft nut.

Fits: Triumph 350, 500 and 650 from 1953-67
        BSA A50, A65 from 1962-72
                       
Part number: 57-1047, T1047, 57-0421, T421, 68-3030, 68-3300, 68-3320

Check out my other items! Be sure to add me to your favorites list!