SPRING (Mitsubishi MB300821)

A worn retaining ring can allow a shaft or bore component to shift out of position, leading to mechanical binding or disassembly. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB300821. The spring-type retaining ring exerts radial pressure to secure components in a groove. A failed ring may cause a sudden loss of retention, resulting in unexpected part separation during operation. In a typical service context, a technician might find a loose ring during a routine disassembly. The item ships at approximately 0.09 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB300821, mb300821