The Ybs67-5 Washer, Spring is the lowest priced item on this Carburetor schematic.
This schematic depicts all components used in the It250 1981 (b) Usa Carburetor partslist.
A sample from the products for the Carburetor include: Spring, Throttle Stop, Cable Adjust Screw Set, O-ring (541), Spring, Plunger.