The Washer-spring,18mm is the lowest priced item on this Rear Hubs/brakes schematic.
With a quantity of eight pieces, the Bolt-upset-ws,10x16 is the most used part in the Rear Hubs/Brakes diagram.
Some items from this specific schematic: Lever-comp,rr Brake P, Cotter,4.0x35, Cylinder,rear Wheel, Seal,bs184.8x13.5zs.