WASHER - LOCK - 5/16 STEEL (Doosan DWA133851)

A damaged lock washer can compromise fastener security in mechanical assemblies. This aftermarket replacement part cross-references Doosan part number DWA133851. The washer type is a lock washer, which prevents nuts and bolts from loosening due to vibration. A plain mechanical function is that it creates tension between the fastener and the surface. A concrete generic failure consequence is that a missing or worn lock washer can allow the fastener to back out, leading to component separation. Keeping a lock washer in sound condition helps maintain joint integrity. Verify the serial number or application, then call (562) 693-7748.

Part number variants: DWA133851, dwa133851