WASHER - FLAT (CAT CT21250)

A damaged flat washer can lead to loosening of fastened components under vibration. During assembly, a flat washer distributes clamping load over a wider surface area to prevent galling. The aftermarket replacement part references CAT as the OE maker and cross-references part number CT21250. This hardware washer type provides a plain mechanical function of spacing and load distribution between a fastener head and the mating surface. A concrete generic failure consequence is that a missing or crushed washer can allow the fastener to embed into the surface, reducing clamp force. Keeping a flat washer in sound condition helps maintain consistent torque retention in bolted joints. Verify the serial number or application, then call (562) 693-7748. This item ships at approximately 0.008 pounds.

Part number variants: CT21250, ct21250