Schlage B520-223 Non-Modular C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$29.69

Schlage B520-223 Non-Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200 and BEST 30H/40H Series

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Model: B520-223

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

$29.69
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Schlage B520-223 Non-Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200 and BEST 30H/40H Series

The Schlage B520-223 is a Non-Modular Clover Mortise Classic Conventional Cylinder Cam engineered as a precision replacement part for commercial door hardware systems. Designed specifically for compatibility with Corbin Russwin A65 ML2200 Master Ring Deadbolts manufactured before June 10, 1993, Russwin Cast Iron Residential Locks, and BEST 30H Deadbolts and 40H Series hardware, this cam provides a reliable mechanical interface between the cylinder and locking mechanism. Built to Schlage's professional-grade standards, the B520-223 is a commercial-class component suitable for demanding replacement and maintenance applications.

Key Features

  • Precise Compatibility: Designed for use with Corbin Russwin A65 ML2200 Master Ring Deadbolts (manufactured before June 10, 1993), ensuring correct mechanical fit for legacy hardware systems.
  • Broad Legacy Lock Support: Also compatible with Russwin Cast Iron Residential Locks and BEST 30H Deadbolts and 40H Series, making it a versatile replacement component across multiple commercial lock families.
  • Non-Modular Clover Design: Classic clover-style conventional cam profile provides a secure and accurate drive interface with mortise cylinders in supported lock bodies.
  • Commercial-Grade Construction: Manufactured as a Schlage Parts component to commercial application standards, supporting reliable long-term performance in professional door hardware assemblies.
  • Dedicated Replacement Part: Categorized as a Cams & Cam Locks replacement part within Schlage's Parts and Accessories line, purpose-built for service and maintenance use.

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: B520-223
  • Features: Schlage Parts

Typical Applications

  • Replacement and maintenance of Corbin Russwin A65 ML2200 Master Ring Deadbolt assemblies (pre-June 10, 1993)
  • Servicing Russwin Cast Iron Residential Lock installations in commercial properties
  • BEST 30H Deadbolt and 40H Series lock maintenance and repair
  • Commercial Office Buildings requiring legacy lock hardware servicing
  • Educational Facilities maintaining older mortise lock systems
  • Government and Municipal Buildings with legacy Corbin Russwin or BEST hardware
  • Property Management and Facility Maintenance operations

Why Schlage B520-223?

The Schlage B520-223 Non-Modular Clover Mortise Cylinder Cam is a purpose-engineered replacement component that preserves the mechanical integrity of compatible Corbin Russwin, Russwin, and BEST locking systems. As a genuine Schlage Parts product manufactured to commercial specifications, it delivers the precise fitment and dependable performance that professional locksmiths and facility maintenance teams require when servicing legacy 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:
B520-223
Features:
Schlage Parts

Schlage B520-223 – Frequently Asked Questions

1) Will the Schlage B520-223 cam work on a Corbin Russwin ML2200 deadbolt?
It fits Corbin Russwin A65 ML2200 Master Ring Deadbolts built before June 10, 1993. That date is the dividing line: later ML2200 bodies use a different cam interface, so pull the cylinder and confirm the lock's vintage before ordering this one.
2) What locks does this clover mortise cylinder cam fit besides Corbin Russwin?
Three families in total: Corbin Russwin A65 ML2200 Master Ring Deadbolts from before June 10, 1993, Russwin Cast Iron Residential Locks, and BEST 30H Deadbolts along with the 40H Series. That makes the B520-223 a single service part for shops carrying a mix of legacy Russwin and BEST hardware.
3) Is the B520-223 a modular cam or a conventional one?
Non-modular. The B520-223 is a classic conventional clover-profile cam, so it is the part for older one-piece mortise cylinders rather than for Schlage's modular cylinder platform. If your cylinder is a modular type, this cam is the wrong drive interface.
4) Does buying this cam get me a complete mortise cylinder?
No. The B520-223 is a replacement cam only, the drive tailpiece that transfers cylinder rotation into the lock body. The mortise cylinder itself, plus any keying, is ordered separately.
5) I manage a building with old BEST 40H locks. Can I put Schlage cylinders in them using this cam?
That is the situation this cam is built for. Swapping a conventional mortise cylinder into a BEST 30H deadbolt or 40H Series lock requires the cam that matches that lock body's drive, and the B520-223 clover cam is specified for the 30H and 40H. It is a commercial-class part, intended for exactly this kind of retrofit and maintenance work across a portfolio of legacy openings.
6) How do I tell if I need a clover cam or a straight cam for my mortise cylinder?
Go by the lock body, not the cylinder. Pull the existing cylinder and look at the cam on the back: the clover profile is a rounded, lobed plate, and it is what the Russwin cast iron locks, pre-1993 ML2200 master ring deadbolts, and BEST 30H/40H bodies drive against. A straight or offset cam in those bodies will not pick up the actuator correctly, and the cam type is the whole reason this part is sold separately from the cylinder.
7) Is the B520-223 a genuine Schlage part or an aftermarket copy?
Genuine Schlage. It is catalogued under Schlage Parts, model B520-223, and made to Schlage's commercial specification, which matters when you are matching the cam profile on a legacy lock where a near-miss copy binds instead of turning.
How fast can I get the Schlage B520-223 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 B520-223 come with a warranty?
Absolutely. The Schlage B520-223 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 B520-223?
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 B520-223 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.