Camshaft Locking Nut MGA, MGB, Sprite, Midget. Mini

This is the nut that attaches the cam timing gear to the camshaft on BMC A-series and B-series engines (Mini, Austin Healey Sprite, MG Midget to 1974. MGA, MGB).The nut is very thin and can only be used a few times before they strip out.It is a good idea to change this nut every time you change the camshaft.Cross Ref. 311-500