Parts such as the Air Cleaner: Washer, Cleaner Assy,air, Clamp, Clamp are included in the Ds80 1980 (t) Usa (e03) Air Cleaner parts fiche.
The eight Ds80 1980 (t) Usa (e03) Air Cleaner component parts are all listed in this schematic.
With two applications this Screw is the most specified part.