The Nut-wash.,8mm is the lowest priced item on this E-5 Cylinder schematic.
A sample from the products for the E-5 Cylinder include: Gskt,cyln.stud (nas), Bolt,flange,6x25, O-ring,94.5x2, Dowel,pin,12x20.
With all the components that make up the XR500 1979 (Z) CANADA E-5 CYLINDER assembly. The Dowel,pin,12x20 is the most frequently specified with three applications.