Some items from this specific schematic: Collar,conn-pivot, Bolt,flange,6x10, Hose Comp.,joint, Bolt,flange,10x69.
The most reasonably priced component used on the Xr500r 1982 (c) F-20 Rear Cushion is the Screw,cross 5x10.
With a quantity of four pieces, the Seal,cush.conn. is the most used part in the F-20 REAR CUSHION diagram.