This schematic depicts all components used in the Ksf250-a10 1996 Europe Rear Master Cylinder partslist.
On this parts fiche the Washer,10.5x15x1.5 is the most specified component.
Parts such as the Rear Master Cylinder: Ring-snap,20.5mm, Reservoir, Washer,10.5x15x1.5, Screw are included in the Ksf250-a10 1996 Europe Rear Master Cylinder parts fiche.