MU 21353

Frequently Asked Questions

Q: What Multiton pallet jack models are compatible with the MU 21353 washer?
A: The MU 21353 is a case-hardened steel flat washer designed for Multiton TM, M, J, and S series manual pallet jack models. It is used in handle assemblies and hydraulic linkage joints. Confirm your model series against this list before ordering.

Q: Why is the MU 21353 made from case-hardened steel?
A: Case-hardened carbon steel provides a hard, wear-resistant surface that distributes load across fastener interfaces while resisting deformation under the cyclic stress of pallet jack operation. The hardened outer layer prevents galling and surface damage during repeated use and load cycling.

Q: Where is the MU 21353 washer used on a Multiton pallet jack?
A: The MU 21353 is used as a load-distribution component under fastener heads in handle assemblies and hydraulic linkage pivot points. It provides a wider bearing surface to prevent fastener pull-through under load and reduce stress concentrations.

Q: What are the dimensions and thickness of the MU 21353 washer?
A: Specific thickness and outer diameter dimensions are not published by the original manufacturer. Contact us with your equipment model and serial number if you need precise dimensional data for verification or replacement compatibility checks.

Q: How long does the MU 21353 washer typically last?
A: Case-hardened steel washers are durable components designed for the life of the pallet jack under normal operating conditions. Replace if you observe corrosion, visible surface pitting, or fastener hole damage. In high-humidity or wet environments, monitor for surface rust and replace if corrosion penetrates the hardened layer.