A sample from the products for the Rear Master Cylinder include: Rod-assy-brake,rr, Bolt,oil,l=23, Diaphragm, Bolt-flanged.
The most reasonably priced component used on the Ksf250-a10 Mojave250 1996 Usa Rear Master Cylinder is the Bolt-flanged-small.
In this schematic the "Washer,10.5x15x1.5" is used most often.