The Nut,6mm is the lowest priced item on this Taillight (g5-a) schematic.
Some items from this specific schematic: Bracket-reflector, Bkt-license Plt,black, Body-comp-tail Lamp, Bulb 6v 17/5.3w.
With a quantity of six pieces, the Washer,6.5x20x1.6 is the most used part in the TAILLIGHT (G5-A) diagram.