NUT - JAM (Mitsubishi MB1015564)

A damaged jam nut can compromise the security of a bolted joint, leading to loosening under vibration. During assembly, a jam nut is typically tightened against another nut to lock the assembly in place. The condition of this aftermarket replacement part, cross-referenced to Mitsubishi part number MB1015564, directly affects the clamping force of the fastener. Keeping a jam nut in sound condition helps maintain consistent preload in threaded connections. A common failure consequence is gradual loosening of the assembly, which may cause misalignment or component separation. This part is a hardware nut used for locking threaded fasteners. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB1015564, mb1015564