JAMNUT - BULKHEAD (Mitsubishi MB1D5119)

MB1D5119: A damaged jamnut can compromise the security of a bulkhead fitting, leading to potential fluid leaks. During inspection, a jamnut may show signs of thread wear or corrosion that affect its locking ability. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB1D5119. The jamnut functions as a thin nut used to lock another nut or component in place against a bulkhead. A loose jamnut can allow the primary fastener to back out under vibration, creating a leak path. Keeping a jamnut in sound condition helps maintain a secure seal at the bulkhead connection. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB1D5119, mb1d5119