Schlage L583-492 Cylinder Reta...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$20.20
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Schlage L583-492 Cylinder Retainer Screw Plate for L Series Mortise Locks

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Model: L583-492

In Stock (leaves warehouse same day if ordered before 3pm ET)

$20.20
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Schlage L583-492 Cylinder Retainer Screw Plate for L Series Mortise Locks

The Schlage L583-492 is a genuine OEM Cylinder Retainer Screw Plate engineered specifically for use with Schlage L Series mortise locks manufactured after April 1994. Designed as a precision replacement component, this mounting plate ensures secure cylinder retention within the lock body, maintaining the integrity and performance of the original lock assembly. Purpose-built for commercial-grade L Series hardware, this part is an essential replacement for maintaining proper lock function in demanding institutional and commercial environments.

Key Features

  • Genuine Schlage OEM Part: Manufactured to original factory specifications for direct compatibility and reliable fit within L Series mortise lock assemblies.
  • Targeted Compatibility: Designed exclusively for Schlage L Series locks produced after April 1994, ensuring precise fit and proper cylinder retention.
  • Cylinder Retention Function: Secures the cylinder within the mortise lock body to maintain consistent lock operation and structural integrity of the hardware assembly.
  • Commercial-Grade Quality: Built to the same standards as Schlage's commercial door hardware line, supporting reliable performance in high-use institutional environments.
  • Direct Replacement Component: Restores original lock functionality when the existing screw plate is worn, damaged, or missing, minimizing downtime and avoiding costly full lock replacement.
  • Mounting Plate Construction: Precision-formed plate provides a stable, secure interface between the cylinder and lock body for consistent, long-term performance.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Mounting Plates
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: L583-492
  • Features: Schlage Parts

Typical Applications

  • Commercial Office Buildings with Schlage L Series mortise lock installations
  • Educational Facilities requiring replacement parts for existing L Series hardware
  • Healthcare Institutions maintaining Schlage L Series mortise lock assemblies
  • Government and Municipal Buildings with commercial-grade Schlage lock systems
  • Multi-Tenant Residential Properties utilizing commercial mortise lock hardware
  • Industrial and Warehouse Facilities servicing Schlage L Series door hardware
  • Hospitality Properties performing preventive maintenance on mortise lock assemblies

Why Schlage L583-492?

Schlage L Series replacement parts like the L583-492 Cylinder Retainer Screw Plate are manufactured to exacting OEM standards, ensuring seamless integration with existing commercial lock assemblies. When maintaining or restoring Schlage L Series mortise locks produced after April 1994, genuine Schlage replacement components provide the fit, finish, and durability expected of professional-grade commercial door hardware. Choosing an authentic Schlage part eliminates compatibility guesswork and supports the long-term reliability of the overall lock system.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Mounting Plates
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
L583-492
Features:
Schlage Parts

Schlage L583-492 – Frequently Asked Questions

1) What does the Schlage L583-492 cylinder retainer screw plate actually do inside a mortise lock?
The L583-492 is the small plate that holds the cylinder in place inside the lock body of a Schlage L Series mortise lock. If the cylinder is loose, spinning, or backing out because the retainer plate is worn, damaged, or missing, this is the part that restores it without replacing the whole mortise case.
2) Will the L583-492 fit my older Schlage L Series mortise lock?
Only if the lock was made after April 1994. Schlage lists the L583-492 for L Series mortise locks produced after that date, so an older L Series case can use a different retainer arrangement and this plate is not the right part for it. Date of manufacture, not the lock function or trim, is what decides it here.
3) Is this a genuine Schlage part or an aftermarket copy?
Genuine Schlage OEM. The L583-492 is built to Schlage's factory specification for the L Series, which is what keeps the cylinder seated correctly in the case rather than close-enough.
4) Do I need to replace the whole mortise lock if the cylinder retainer is broken?
No. For a post-April-1994 Schlage L Series case, swapping in the L583-492 screw plate restores cylinder retention and normal lock operation, so you avoid pulling and re-prepping the entire mortise lock. That is the point of stocking it as a replacement part for maintenance work.
5) Can I use the L583-492 on a Schlage bored lock like an ND or L9000 series?
No. The L583-492 is specific to the L Series mortise lock case. A cylindrical bored lockset retains its cylinder differently, and Schlage lists this plate for L Series mortise assemblies only, so it will not serve as a universal cylinder retainer across other Schlage families.
6) Is the L583-492 retainer plate rated for commercial door hardware?
It is a commercial-grade part, built for Schlage's commercial L Series mortise line rather than residential hardware. That is why it shows up in schools, hospitals, offices, government buildings and multi-family properties where L Series mortise locks are standardized across the building.
7) How many pieces come with the Schlage L583-492?
It is sold as a single retainer screw plate, ordered under part number L583-492. If you are servicing multiple openings, order one per lock body you are repairing.
How fast can I get the Schlage L583-492 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schlage L583-492 come with a warranty?
Absolutely. The Schlage L583-492 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schlage L583-492?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Schlage L583-492 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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