In this schematic the "Washer(5.5x20x1.2)" is used most often.
Parts such as the Rear Combination Lamp (gsx-r1000l3 E28): Washer(5.5x20x1.2), Lamp Assy,rr Combination, Nut, Reflector Assy,rr Side are included in the Gsxr1000 2013 (l3) Usa (e03) Rear Combination Lamp (gsx-r1000l3 E28) parts fiche.