On this parts fiche the Washer(10x15x1.5) is the most specified component.
Parts such as the Front Master Cylinder (model L/m/n): Cylinder Assy,fr Master, Screw, Diaphragm, Holder are included in the Vx800 1990 (l) Usa (e03) Front Master Cylinder (model L/m/n) parts fiche.
The Suzuki FRONT MASTER CYLINDER (MODEL L/M/N) has twenty-five products enlisted in the schematic.