The Washer,plug,drain 12 is the lowest priced item on this Gasket Kit schematic.
In this schematic the "Gasket,cylinder S (nas)" is used most often.
Parts such as the Gasket Kit: Gasket A,reed Val (mca), Packing Set, O-ring Special, Gasket,cylinder (nas) are included in the Cr250r Elsinore 1988 (j) Sweden Gasket Kit parts fiche.