The component with the lowest price in the SEAT TAIL COVER (MODEL D) schematic is the Washer.
Parts such as the Seat Tail Cover (model D): Screw 6x30, Cushion, Nut 6mm, Spacer are included in the Gs450s 1982 (d) General Export (e01) Seat Tail Cover (model D) parts fiche.
With three applications this Washer is the most specified part.