PLEASE NOTE: Delays in processing orders. Orders placed between Tuesday 21 January and Monday 10 February will be processed 11 February.
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)