On this parts fiche the Washer (10.1x21x2.3) is the most specified component.
Parts such as the Footrest (gs750c: Bush, Bolt, Bar,front Footrest,right, Washer (19.5x32x2) are included in the Gs750ec 1979 (n) Usa (e03) Footrest (gs750c parts fiche.
This Bar,front Footrest,right is the most expensive of the items that make up this Footrest (gs750c assembly.