Norton clutch springs, set of 3. Suits Norton AMC AJS Matchless clutches 1957-196a? Slighttly heavier spring than early A2/399 and. D2/399 but is quite suitable for earlier clutches. Made in UK. Overall length (relaxed): 1.78" (45.2MM); Outside diameter: .650" (16.6MM); Wire size: .102" (2.6MM) Original part No.: 04-0385; 040385 - clutch spring
