Some items from this specific schematic: Nut-hex-fine, Washer,10.5x18x1.6, Pin-cotter,2.5x20, Pin-cotter,4.0x20.
The most reasonably priced component used on the Kaf300-b1 Mule500 1990 Usa Steering Shaft is the Washer,10.5x18x1.6.
The Steering Shaft is made up of components including this Gear-assy-steering which is the most expensive.