The Nut, Hexagon (663) is the lowest priced item on this Control - Engine schematic.
Parts such as the Control - Engine: Washer, Plain (646), Joint, Washer, Plain (646), Handle, Gear Shift are included in the C30erp 1991 Control - Engine parts fiche.
In this schematic the "Screw,pan Head (646)" is used most often.
