Gearbox clutch worm inspection cover, for upright gearbox, Norton singles 1947-48, new with copy of original style script, flat back. Nominal dimensions OL: 3-15/16 in 100mm; OH: 2-7/32 in 57mm; Hole diam: 3/16 in 5.27mm; Hole shoulder recess: 11/32 in 8.93mm; Hole centres: 3-9/32 in 86.42mm. Original part number: B2/302 - gearbox clutch worm inspection cover
