BLACK WASHER 3/8 (Doosan DWD917020)

DWD917020: A damaged washer can allow fastener loosening under vibration, leading to component misalignment or failure. During inspection, a hardened flat washer distributes clamp load evenly across a bolted joint. Keeping a washer in sound condition helps maintain consistent torque retention in assembled hardware. The aftermarket replacement part references the Doosan catalog number DWD917020. This black washer is a 3/8-inch hardware washer, a type-level plain mechanical function is to provide a bearing surface for a nut or bolt head. A concrete generic failure consequence is that a missing or crushed washer can cause the fastener to embed into the softer mating surface, reducing clamping force. Verify the serial number or application, then call (562) 693-7748.

Part number variants: DWD917020, dwd917020