Some items from this specific schematic: Washer,thrust, Disk, B. Clutch (mca), Bolt,hex.,6x25, Outer Comp,clutch.
The lowest price component in this Clutch parts-list fiche is the Bolt,hex.,6x25.
The Disk Clutch (nas) is the most widely applied product in the CB650SC NIGHTHAWK 1982 (C) USA CLUTCH ( seven times ).