On this parts fiche the Washer(10x15x1.5) is the most specified component.
The most reasonably priced component used on the Sv650 2005 (k5) Usa (e03) Rear Master Cylinder (sv650k4/sk4/k5/sk5/k6/sk6/k7/sk7) is the Pin.
This Cylinder Assy,rr Master is the most expensive of the items that make up this Rear Master Cylinder (sv650k4/sk4/k5/sk5/k6/sk6/k7/sk7) assembly.