WASHER - LOCK (Mitsubishi MB0000-000380-00)

MB0000-000380-00: A damaged lock washer can allow threaded fasteners to loosen under vibration, leading to component separation. During assembly, a lock washer's split or toothed design resists rotational loosening by biting into the mating surfaces. The catalog reference for this aftermarket replacement part is Mitsubishi part number MB0000-000380-00. Its general function is to secure bolts and nuts by preventing them from backing out due to dynamic loads. A common failure consequence is that a worn or missing lock washer may cause fasteners to loosen, resulting in misalignment or mechanical noise. Keeping a lock washer in sound condition helps maintain joint integrity in fastened assemblies. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB0000-000380-00, mb0000-000380-00, MB000000038000, mb000000038000