The Washer,nylon,3.45x6.5 is the lowest priced item on this Headlight(s) schematic.
Some items from this specific schematic: Screw,tapping,4x30, Spring,head Lamp, Cap,vinyl Pipe,3x5x10, Lens-comp,head Lamp.
This HEADLIGHT(S) assembly utilises two Cap,vinyl Pipe,3x5x10(s) - the highest specified component.