Engine mainshaft packing shim/ thrust washer for Norton twins, fitted into crankcase prior to fitting the bearing, 0.006in. Used to reduce crankshaft end float. [Clearly it will slightly reduce the bearing engagement and so should probably not be used on racing or high performance engines.] Number per engine: As required Original Part Number: D12/46; 2196A; T2196A; 2196B; T2196B; 067569 - mainshaft packing shim Mainshaft bearing packing washer
