4920815

Frequently Asked Questions

Q: What is SKU 4920815?
A: SKU 4920815 is a carbon steel spring lockwasher designed to prevent fastener loosening in manual pallet jack assemblies. The conical spring shape absorbs vibration and maintains clamp load on critical bolted joints subject to repeated stress and movement.

Q: What manual pallet jack equipment does the 4920815 lockwasher fit?
A: This lockwasher is used in manual pallet truck mechanical assemblies across multiple OEM brands. Verify the washer inner diameter and thickness match the fastener size specified in your equipment assembly diagrams before ordering.

Q: What is the material and finish of SKU 4920815?
A: SKU 4920815 is manufactured from carbon steel in an uncoated finish. The uncoated specification is suitable for indoor warehouse environments but may require surface protection if used in wet or corrosive conditions.

Q: Why use a spring lockwasher instead of a regular flat washer?
A: Spring lockwashers like the 4920815 actively resist vibration-induced loosening by maintaining constant clamp load pressure. Regular washers do not provide this tension maintenance, allowing fasteners to gradually loosen under the continuous vibration present in pallet truck operation.

Q: Which fastener applications require the 4920815 lockwasher?
A: Use SKU 4920815 under bolt heads and nuts on critical mechanical joints in pallet jack assemblies including steering mechanisms, load wheel attachments, handle pivots, and pump mounting points where vibration resistance is essential.

Q: Are there any cross-reference part numbers for 4920815?
A: No cross-reference part numbers have been identified for SKU 4920815. Confirm the inner diameter and material specification against your equipment documentation to ensure compatibility with your fastener size.