Parts such as the Rear Cushion: Washer,10.3m/m, Adjuster, Spring, Collar,rr Cushion, Cushion,l Rr are included in the Cx500d Deluxe 1980 (a) Canada Rear Cushion parts fiche.
The Nut,hex.,10mm is the cheapest item from this partsfiche.
The most expensive part in this assembly is the Cushion,r Rr.