The Washer is the lowest priced item on this Carburetor schematic.
Parts such as the Carburetor: Tube,breather 245, Spg,coil Compress, Gasket, Jet Slow are included in the Nsr125r 1991 (m) France / Kph Carburetor parts fiche.
This Carburator Assy is the most expensive of the items that make up this Carburetor assembly.