The lowest price component in this Front Master Cylinder parts-list fiche is the Nut,lock,6mm,black.
The twenty En450a1 454ltd 1985 Usa California Canada Front Master Cylinder component parts are all listed in this schematic.
Some items from this specific schematic: Hose-brake, Bolt,6x37.3,black, Screw-countersunk, Stopper-brake,piston.