NUT - LOCK HEX JAM (Mitsubishi MB1063089)

A damaged lock nut can allow threaded fasteners to loosen under vibration, leading to component separation or misalignment. During inspection, a hex jam nut may show signs of thread wear or deformation that compromise its locking ability. The condition of a lock nut directly affects the security of bolted joints in mechanical assemblies. Keeping a lock nut in sound condition helps maintain consistent clamping force and prevents unintended disassembly. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB1063089. It is a lock hex jam nut, a type of fastener that resists loosening through its deformed thread design. Verify the serial number or application, then call (562) 693-7748. The item ships at approximately 0.024 pounds.

Part number variants: MB1063089, mb1063089