The most reasonably priced component used on the Sl292b 1971-1973 Brake Sl292/b/c is the Pin,clevis.
Parts such as the Brake Sl292/b/c: Washer, Spring, Spring,return 2, Ybs74-220 Pin,cotter, Nut, Hexagon are included in the Sl292b 1971-1973 Brake Sl292/b/c parts fiche.
With two applications this Ybs74-220 Pin,cotter is the most specified part.