Schlage L283-126 XL11-515 Lead...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,110.00
$646.29
Schlage L283-126 XL11-515 Lead Lined Lock Case for L-Series Mortise Locks, Field Reversible

Schlage L283-126 XL11-515 Lead Lined Lock Case for L-Series Mortise Locks, Field Reversible

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Model: L283-131 XL11-515

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

$1,110.00
$646.29
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Schlage L283-126 XL11-515 Lead Lined Lock Case for L-Series Mortise Locks, Field Reversible

The Schlage L283-126 XL11-515 is a commercial-grade lead lined lock case engineered for use with the Schlage L-Series mortise lock family. Designed as a direct replacement component for specialized applications requiring lead lining, such as radiation-shielded environments, this lock case features field reversible operation, allowing installation flexibility for doors with varied handing configurations without special tools or additional parts. As a manufacturer-genuine Schlage part, it is built to maintain the performance and dimensional standards of the original L-Series hardware.

Key Features

  • Lead Lined Construction: Specially engineered lock case with lead lining to support radiation-shielded door applications, maintaining lock function in demanding specialty environments.
  • Field Reversible Operation: Handing can be reversed in the field to accommodate left-hand or right-hand door configurations without requiring additional parts or factory modification.
  • L-Series Compatibility: Designed specifically for use with the Schlage L-Series mortise lock line, ensuring direct fit and proper mechanical integration with existing L-Series hardware.
  • Commercial-Grade Replacement Part: Manufactured as a genuine Schlage replacement component, maintaining the dimensional accuracy and performance standards of original L-Series lock cases.
  • Mechanical Lock Case: Operates as a mechanical (non-electronic) component, delivering reliable latching and locking function without electrical dependencies.
  • Specialty Application Design: Suited for environments where standard lock cases cannot be used due to radiation shielding or lead-lined door construction requirements.

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: Lock Cases
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: L283-126 XL11-515
  • Features: Schlage Parts

Typical Applications

  • Radiation Therapy and Radiology Departments in Healthcare Facilities
  • Medical Imaging Centers Requiring Lead-Lined Door Hardware
  • Nuclear Research and Laboratory Environments
  • Specialty Commercial Buildings with Radiation Shielding Requirements
  • Hospital and Clinical Facility Renovation Projects
  • Government and Military Facilities with Shielded Enclosures
  • Industrial Facilities with Radiation Safety Compliance Requirements

Why Schlage L283-126?

Schlage L-Series lock cases are manufactured to exacting commercial standards, ensuring consistent mechanical performance and long-term reliability in high-demand environments. The L283-126 XL11-515 provides a genuine manufacturer replacement solution for lead-lined door assemblies, preserving the integrity of both the security hardware and the specialized door construction it supports. For facilities requiring dependable, field-reversible lock cases in radiation-shielded applications, this Schlage component delivers the precision fit and quality expected from a professional-grade commercial 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:
Lock Cases
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
L283-126 XL11-515
Features:
Schlage Parts

Schlage L283-131 XL11-515 – Frequently Asked Questions

1) What is the Schlage L283-126 lock case actually used for?
It is the lead lined mortise lock case for Schlage L-Series mortise locks, used on lead-lined doors in radiation-shielded openings: radiology and radiation therapy suites, imaging centers, nuclear labs, and shielded government or military enclosures. It is the lock body itself, not the trim, and it is a mechanical (non-electronic) case.
2) Do I have to order the L283-126 lock case handed for a left or right hand door?
No. The case is field reversible, so handing is changed on site for left hand or right hand doors without special tools, extra parts, or a factory order. One case covers either handing.
3) Which Schlage L-Series function do I choose when ordering the L283-126 case?
The case is ordered to match the lock function group you are servicing. Three choices are offered: L9010, L9056, and a combined L9050/60/66/70/71 case. Pull the function number off the existing L-Series lock or the door schedule and order the matching one, because the case internals differ by function group.
4) Will a standard Schlage L9000 lock case work on a lead-lined door instead of this one?
For a lead-lined, radiation-shielded door assembly the lead lined L283-126 case is the part specified. A standard case has no lead lining, so swapping one in leaves a gap in the shielding at the lock pocket. Keep the lead lined case in shielded openings and use standard L-Series cases everywhere else in the building.
5) Can I reuse my existing Schlage L-Series levers, roses and cylinder with this replacement case?
Yes. The L283-126 is a genuine Schlage part built to the dimensional standards of the original L-Series lock case, so it mates with existing L-Series trim and hardware. Confirm the function group of the case you order matches the lock you are rebuilding (L9010, L9056, or the L9050/60/66/70/71 group).
6) I manage a hospital with several imaging rooms. Can I standardize on one lead lined lock case across those doors?
Yes, within a function group. If the shielded doors all use the same L-Series function, a single case part covers them all, and because the case is field reversible you do not need separate left and right hand stock. Rooms running different functions (say L9010 passage versus an L9050/60/66/70/71 type) will need the matching case for each.
7) Is the L283-126 lock case rated for commercial traffic, or is it a residential part?
It is a commercial component, part of Schlage's commercial L-Series mortise line, intended for institutional openings such as hospitals, labs, and government facilities rather than residential doors.
8) Does the L283-126 need power or wiring to work?
No wiring. It is a purely mechanical lock case, so latching and locking work with no power supply, transfer hinge, or door loop. If your opening needs electrified control, you need an electrified L-Series case instead.
How fast can I get the Schlage L283-131 XL11-515 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 L283-131 XL11-515 come with a warranty?
Absolutely. The Schlage L283-131 XL11-515 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 L283-131 XL11-515?
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 L283-131 XL11-515 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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