WASHER - LOCK (JCB JC4E7)

JC4E7: A damaged lock washer can allow threaded fasteners to loosen under vibration. During assembly, a lock washer resists rotational loosening by embedding its edges into the mating surfaces. The JCB catalog reference for this aftermarket replacement part is JC4E7. This washer type provides a plain mechanical function of maintaining clamping force. A concrete generic failure consequence is that a missing or worn lock washer may lead to fastener back-out and joint separation. Keeping a lock washer in sound condition helps prevent progressive loosening over time. Verify the serial number or application, then call (562) 693-7748. This item ships at approximately 0.012 POUNDS.

Part number variants: JC4E7, jc4e7