The most reasonably priced component used on the Xs850 1981 (b) Usa Handle Switch - Lever is the Screw, Panhead (3g2).
This schematic depicts all components used in the Xs850 1981 (b) Usa Handle Switch - Lever partslist.
The Xs850 1981 (b) Usa Handle Switch - Lever consists of twenty-two pieces with the Switch, Handle 3 (l.h) being the most expensive.