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The ILCO 8690010 is a cylinder nut designed for use in lock cylinder assemblies. This small hardware component secures lock cylinders in place within door hardware and related locking mechanisms. It is a direct replacement part sold individually and sized for precise fitment in standard cylinder applications. Locksmiths, security hardware technicians, and facility maintenance professionals typically source this part for service and repair work on existing lock hardware.
The 8690010 cylinder nut is suited for lock cylinder replacement and repair applications across residential and commercial door hardware. It is used when a cylinder must be removed, repositioned, or replaced and the retaining nut requires replacement due to wear, damage, or loss. The part ships as a single unit, making it practical for single-unit service calls or stocking in a parts inventory.
Designed as an OEM-style replacement cylinder nut for standard lock cylinder assemblies in residential and commercial door hardware applications.
Installation is typically performed by a licensed locksmith or qualified hardware technician. Before servicing any lock cylinder, ensure the door is in a safe, accessible position and that building security protocols are followed. Standard hand tools are sufficient for most cylinder nut installations. Refer to the lock manufacturer's service documentation for proper torque and seating requirements specific to the cylinder in use.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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