WASHER - LOCK WITH TEETH (Bobcat BC89519.3)

A damaged lock washer with teeth can allow threaded fasteners to loosen under vibration. During assembly, this washer type uses its internal or external teeth to bite into the mating surface and the fastener head. The catalog reference is Bobcat part number BC89519.3, offered here as an aftermarket replacement. Its plain mechanical function is to create a locking action that resists rotational loosening. A concrete generic failure consequence is that a missing or worn tooth washer may lead to fastener back-out and joint separation. Keeping this washer in sound condition helps maintain clamp load in bolted connections. Verify the serial number or application, then call (562) 693-7748.

Part number variants: BC89519.3, bc89519.3