Schlage B520-309 Non-Modular C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$29.69
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Schlage B520-309 Non-Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200 Series, Pre-July 2010 Everest/Primus Conventional

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Model: B520-309

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

$29.69
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Schlage B520-309 Non-Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200 Series

The Schlage B520-309 is a Non-Modular Clover Mortise Cylinder Cam engineered specifically for Pre-July 2010 Everest/Primus Conventional Cylinder configurations. Designed as a precision replacement part for commercial door hardware, this cam is compatible with Corbin Russwin ML2200 Series locks, covering Corbin 7000-9000 and Russwin 4000-5000 variants manufactured before June 10, 1993, with the exception of 42/55 Interior configurations. It provides a reliable, drop-in solution for maintaining the operational integrity of legacy mortise lock assemblies in commercial environments.

Key Features

  • Precise Compatibility: Designed for Corbin Russwin ML2200 Series, including Corbin 7000-9000 and Russwin 4000-5000 mortise locks manufactured before June 10, 1993 (except 42/55 Interior configurations).
  • Everest/Primus Platform Support: Engineered for Pre-July 2010 Everest/Primus Conventional Cylinder systems, ensuring accurate fit and function within legacy Schlage keying platforms.
  • Non-Modular Clover Design: Clover-style cam profile provides positive engagement with the mortise lock mechanism, maintaining smooth and dependable cylinder operation.
  • Commercial-Grade Replacement Part: Manufactured to Schlage's commercial standards, this cam restores proper lock function without requiring full cylinder or lock replacement.
  • Schlage Parts Quality: Authentic Schlage replacement component, ensuring compatibility and performance consistent with original factory specifications.

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: Cams & Cam Locks
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: B520-309
  • Features: Schlage Parts

Typical Applications

  • Replacement maintenance for Corbin Russwin ML2200 Series mortise locks in commercial facilities
  • Legacy lock restoration in commercial office buildings with pre-1993 hardware
  • Institutional facilities maintaining Everest/Primus keying systems
  • Educational institutions with existing Corbin 7000-9000 or Russwin 4000-5000 mortise hardware
  • Healthcare facilities requiring compatible replacement parts for legacy mortise assemblies
  • Government and municipal buildings maintaining period-specific mortise lock hardware
  • Property managers and locksmiths servicing pre-June 10, 1993 Corbin Russwin installations

Why Schlage B520?

Schlage replacement parts are manufactured to exacting commercial standards, delivering authentic fit and function for legacy mortise lock systems. The B520-309 cam is purpose-built for demanding compatibility requirements, matching the precise geometry of Pre-July 2010 Everest/Primus Conventional Cylinder platforms and Corbin Russwin ML2200 Series hardware, making it the dependable choice for facilities professionals maintaining long-service commercial door hardware.

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:
Cams & Cam Locks
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
B520-309
Features:
Schlage Parts

Schlage B520-309 – Frequently Asked Questions

1) Will this cam work with a current Everest or Primus cylinder?
No. The B520-309 is cut for Pre-July 2010 Everest/Primus Conventional cylinder configurations. If you are working with a cylinder built after that changeover, this is the wrong cam and you need the cam matched to the newer platform.
2) How do I tell if my Corbin Russwin lock is old enough to need the B520-309 cam?
The cut-off stated for the Corbin 7000-9000 and Russwin 4000-5000 locks is manufacture before June 10, 1993. Locks made after that date fall outside what this cam covers, and 42/55 Interior configurations are excluded regardless of date. If you can pull one lock case and check the date stamp before ordering quantity, do that.
3) What is a clover cam and why does the cam shape matter on a mortise cylinder?
The cam is the tail piece on the back of a mortise cylinder that turns and drives the lock case. A clover profile has a lobed shape that engages the ML2200 mechanism; a cam with the wrong profile will either not seat or will turn without throwing the latch or deadbolt. The B520-309 is a non-modular clover cam, meaning it is a one-piece cam rather than part of a modular cam system.
4) Do I have to replace the whole mortise cylinder, or can I just swap the cam?
Just the cam. The B520-309 is sold as a replacement part so you can restore correct lock function without buying a new cylinder or a new mortise lock case. Pull the cylinder, change the cam to the correct profile for the lock, and reinstall.
5) Is the Schlage B520-309 cam a commercial or residential part?
Commercial. It is a Schlage commercial parts item aimed at legacy mortise hardware in offices, schools, healthcare, and government buildings. Residential mortise work rarely uses the ML2200 platform this cam is built around.
How fast can I get the Schlage B520-309 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 B520-309 come with a warranty?
Absolutely. The Schlage B520-309 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 B520-309?
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 B520-309 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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