WASHER - LOCK (Mitsubishi MB0000-70018)

MB0000-70018: A damaged lock washer can allow threaded fasteners to loosen under vibration. This aftermarket replacement part references Mitsubishi catalog number MB0000-70018. A lock washer is a type of hardware washer that creates tension between a nut and a surface. Its plain mechanical function is to resist rotational loosening by biting into the mating surfaces. A common failure consequence is that a missing or worn lock washer leads to fastener back-out and joint separation. During assembly, the washer's split or toothed design deforms to maintain clamping force. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB0000-70018, mb0000-70018, MB000070018, mb000070018