WASHER - LOCK M8 (Mitsubishi MB1017113)

A damaged lock washer can allow a fastener to loosen under vibration, leading to component separation. During inspection, a lock washer's split or deformed shape may indicate it has lost its spring tension. Keeping a lock washer in sound condition helps maintain clamping force on bolted joints. This aftermarket replacement part references Mitsubishi as the OE maker and carries the cross-reference part number MB1017113. It is a lock washer type hardware item, sized M8, that provides a plain mechanical function by creating friction against the fastener head. A concrete generic failure consequence is that a missing or worn lock washer can result in a bolt backing out during operation. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB1017113, mb1017113