PLEASE NOTE: Delays in processing. Orders placed between Thursday 11 April and Wednesday 1 May will be processed 02 May.
Lock nut to hold clutch to gearbox mainshaft. Suit all Nortons from 1934? to 1975. Earlier style pre 1957, 5/8 inch x 20tpi BSC CEI Original part numbers: 3331; A2/372; E6254; 040373 - main axle nut (clutch)