Some items from this specific schematic: Washer(6.5x18x1.6), Cap,oil Tank, Washer(6.5x18x1.6), Cover,frame,left.
The Or50 1979 1980 (n) (t) Usa (e03) Oil Tank - Frame Cover consists of twelve pieces with the Cover,frame,left being the most expensive.
In this schematic the "Bolt" is used most often.