The Washer,plain, 6mm is the most widely applied product in the XL100 K0 1974 USA SEAT / REAR FENDER / SIDE COVER ( nine times ).
The twenty-three Xl100 K0 1974 Usa Seat / Rear Fender / Side Cover component parts are all listed in this schematic.
The most reasonably priced component used on the Xl100 K0 1974 Usa Seat / Rear Fender / Side Cover is the Washer,plain, 6mm.