The Piston Pump Shim helps to adjust spaces, alignment, and fitment between two surfaces or parts. Shims are used to align components ensure proper positioning and reduce vibration or noise. Shims are employed to fine-tune the fitment of parts, compensating for slight variations in dimensions and achieving desired clearances.Attributes:• Withstand high strength and wear resistance• Manufactured to precise specifications and are built for durability and reliability• Provide 5 mounting holes of diameter 0.281"Applications:The Piston Pump Shim is used in between the retainer plate and barrel in the rotating piston pump setup to achieve the desired fit and is used individually or stacked to achieve the required thickness or alignment.