A Washer is a thin plate disc-shaped object made up of steel and It is used in between the pump barrel and cradle in a piston pump is a thin, flat ring-shaped component that serves to distribute the load of the pump barrel evenly over the cradleAttributes:• Withstands heavy loads and provide better support for components.• Protects components from damage or wear by preventing them from rubbing against each other.Applications:A Washer is used in between the pump barrel and the cradle to ensure that it is properly aligned and seated to prevent leaks and ensure optimal performance of the pump.