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The LCN 40103049ALLH is a left-hand hold open arm designed for use with LCN door closers in commercial and institutional door hardware applications. The arm holds a door in the open position until released, making it suitable for high-traffic corridors, accessible entryways, and doorways that require frequent unobstructed passage. Finished in 689 aluminum, it provides a clean, neutral appearance that blends with standard commercial door hardware. The arm weighs 2.35 pounds and measures 12.1 inches in length, 3 inches in width, and 1.9 inches in height. Installation is performed by a qualified door hardware technician or commercial locksmith.
This hold open arm is intended for use in commercial, institutional, and government facilities where controlled door swing and open-position retention are required. Typical applications include schools, hospitals, government buildings, and correctional facilities where LCN door closers are already installed. The 689 aluminum finish suits installations where a standard anodized aluminum appearance is specified.
Designed as an OEM-style replacement or accessory arm for LCN door closer systems requiring a left-hand hold open arm in 689 aluminum finish. Refer to LCN documentation to confirm compatibility with your specific closer model before ordering.
Installation should be performed by a licensed door hardware technician or commercial locksmith familiar with LCN closer systems. Ensure the door closer and any connected hardware are fully depressurized and the door is secured in a safe position before removing or installing the arm. Follow the closer manufacturer's template and torque guidelines provided in the product documentation. Verify door hand and swing direction before ordering to confirm correct fitment.
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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