Lcn 4640480 Shaft Extension 689 Aluminum Finish

Product Description

The LCN 4640480 is a shaft extension component designed for use with LCN door closer assemblies. It extends the closer shaft to accommodate non-standard door and frame configurations where additional reach is required between the closer body and the mounting point. Finished in 689 aluminum, it provides a clean, corrosion-resistant appearance suited to commercial and institutional environments. The part ships as a single unit and measures approximately 2.2 inches in length, 1.5 inches in width, and 1 inch in height, with a lightweight profile at 0.1 pounds. Installation is performed by qualified door hardware technicians or locksmiths.

This shaft extension is used in commercial door applications where standard closer shaft reach is insufficient for the installation geometry. Common install scenarios include offset mounting configurations on metal or wood doors in high-traffic facilities such as schools, hospitals, government buildings, and correctional facilities. It is intended as a hardware accessory that works within the LCN closer system to maintain proper door control function and closure performance.

Key Features

• 689 aluminum finish provides a corrosion-resistant, low-profile appearance
• Compact dimensions: 2.2 inches long, 1.5 inches wide, 1 inch tall
• Lightweight construction at 0.1 pounds
• Single-unit packaging for straightforward ordering and inventory
• Designed for use in high-traffic institutional and commercial door applications

Compatibility

Designed as an OEM-style shaft extension accessory for LCN door closer assemblies requiring additional shaft reach in non-standard mounting configurations.

Installation Notes

Installation should be performed by a licensed door hardware technician or qualified locksmith familiar with LCN closer systems. Disengage the door closer from the door before beginning any shaft or spindle work to prevent injury from spring tension. Verify that the extension is fully seated and secured before returning the door to service. Consult applicable building and life-safety codes to confirm that the installation meets required door closure performance standards.