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Schlage B520-233 Non-Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200 Series
The Schlage B520-233 is a Non-Modular Clover Mortise Classic Conventional Cylinder Cam engineered as a precision replacement part for compatible Corbin Russwin ML2200 Series mortise locks, specifically those from Corbin 7000-9000 and Russwin 4000-5000 Series manufactured before June 10, 1993 (excluding 42/55 Interior configurations). Designed for commercial door hardware applications, this cam provides a reliable and accurate fit for legacy lock assemblies requiring genuine replacement components.
Key Features
- Precise Compatibility: Designed specifically for Corbin Russwin ML2200 Series mortise locks, including Corbin 7000-9000 and Russwin 4000-5000 Series manufactured before June 10, 1993, excluding 42/55 Interior configurations.
- Non-Modular Clover Design: Classic conventional cylinder cam geometry engineered to match original factory specifications for accurate, dependable replacement in legacy lock assemblies.
- Commercial-Grade Construction: Built to meet the demands of commercial door hardware applications where reliable, long-term performance is essential.
- Genuine Schlage Component: Manufactured as an authentic Schlage replacement part, ensuring compatibility and quality consistent with original equipment standards.
- Direct Drop-In Replacement: Engineered to restore proper mortise cylinder cam function in applicable Corbin Russwin ML2200 Series assemblies without modification.
- Legacy Lock Support: Specifically designed to address the replacement needs of older Corbin Russwin hardware installations, extending the service life of existing assemblies.
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: B520-233
- Features: Schlage Parts
Typical Applications
- Commercial Office Buildings with Legacy Corbin Russwin Mortise Lock Installations
- Educational Facilities Maintaining Older ML2200 Series Hardware
- Healthcare Institutions with Existing Corbin or Russwin Lock Assemblies
- Government and Municipal Buildings Requiring Period-Correct Replacement Components
- Hospitality Properties Servicing Legacy Mortise Lock Systems
- Industrial and Warehouse Facilities Maintaining Pre-1993 Door Hardware
- Multi-Tenant Residential and Mixed-Use Properties with Commercial Mortise Lock Systems
Why Schlage B520-233?
Schlage replacement parts are manufactured to exacting standards, ensuring that legacy Corbin Russwin ML2200 Series mortise lock assemblies can be restored to proper operating condition with confidence. The B520-233 Non-Modular Clover Mortise Cylinder Cam delivers the precision fit and commercial-grade durability that facility managers and locksmiths depend on when servicing older, high-value door hardware installations.
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:
- B520-233
- Features:
- Schlage Parts
Schlage B520-233 – Frequently Asked Questions
1) How do I know if my Corbin Russwin lock is old enough to need the non-modular clover cam?
The cutoff is the June 10, 1993 manufacturing date. The B520-233 is the non-modular clover cam for Corbin 7000-9000 and Russwin 4000-5000 Series locks made before that date. Corbin Russwin changed cylinder and cam design after that point, so a later lock is not the application for this part. If you have the cylinder out, compare the existing cam to the clover shape before ordering.
2) Can I use a Schlage cylinder in a Corbin Russwin ML2200 lock?
That is the whole point of this cam. A standard conventional mortise cylinder threads into the lock body, but the lock case needs a cam with the right geometry to throw the mechanism. Fitting the B520-233 non-modular clover cam to the cylinder lets it drive a pre June 1993 Corbin 7000-9000 or Russwin 4000-5000 case, including ML2200 Series, without modifying the lock.
3) Does the B520-233 fit a 42 or 55 Interior Corbin Russwin lock?
No. The 42/55 Interior configurations are specifically excluded from the B520-233's application, even within the same pre June 1993 Corbin and Russwin families. For those cases you need the cam matched to that configuration, not this clover cam.
4) What exactly is the Schlage B520-233 part?
It is the cam only, the clover shaped driver that mounts on the back of a conventional mortise cylinder and turns the lock case when the key rotates. It is a replacement part, not a cylinder and not a lock. If the cylinder itself is worn or you need a different keyway, you'll need to order a mortise cylinder separately and use this cam with it.
5) I'm standardizing cylinders across a building with mixed old Corbin Russwin locks. Does one cam cover them all?
Not by itself. The B520-233 covers the non-modular clover application, pre June 10, 1993 Corbin 7000-9000, Russwin 4000-5000 and ML2200 Series, minus the 42/55 Interior cases. Openings with later or different Corbin Russwin cases take a different cam. Survey the lock cases first, then order cams by group rather than assuming one part covers the whole property.
6) Is the B520-233 cam suitable for commercial buildings, or is it a residential part?
Commercial. It is catalogued for commercial mortise lock service and is the part locksmiths and facility staff use when rebuilding legacy Corbin Russwin hardware in offices, schools, hospitals, hotels and municipal buildings. It is a genuine Schlage replacement component.
How fast can I get the Schlage B520-233 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 B520-233 come with a warranty?
Absolutely. The Schlage B520-233 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 B520-233?
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installation tips, and troubleshooting. Contact Us
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