Some items from this specific schematic: Collar,fr.cover, Stopper, Hinge, Rub, Hinge Stopper, Rubber,hingemount.
The most reasonably priced component used on the Nc50 1982 (c) F-8 Seat is the Nut,flange,6mm.
The F-8 Seat is made up of components including this Seat Comp. which is the most expensive.