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Schlage B520-254 Corbin Russwin DL4000 Cam, FSIC, SFIC Mortise Cylinders
Manufacturer Resources
Product Specs
- Warranty:
- Limited Lifetime Mechanical/Finish
- Product Group:
- Mechanical Locks
- Subcategory:
- Parts and Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Rings, Spindles and Springs
- Commercial/Residential:
- Commercial
- Product Model:
- B520-254
- Product Substrate:
- Stainless Steel
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware
Schlage B520254 – Frequently Asked Questions
1) What is the Schlage B520-254 cam used for?
The B520-254 is a replacement cam for Schlage full size interchangeable core (FSIC) and small format interchangeable core (SFIC) mortise cylinders, cut to drive Corbin Russwin DL4000 locks. It is the small driver part that transfers cylinder rotation into the lock body, not a cylinder or a core, so you still need the mortise cylinder and core itself.
2) Will the Schlage B520-254 cam work on a Corbin Russwin DL4000 lock?
Yes, that is the exact application. The B520-254 cam is specified for Corbin Russwin DL4000 series locks when you are fitting a Schlage FSIC or SFIC mortise cylinder to them. Using a standard straight cam in that spot generally will not throw the DL4000 correctly.
3) Does the B520-254 cam fit both FSIC and SFIC Schlage mortise cylinders?
Both. Schlage lists the B520-254 for its full size interchangeable core and small format interchangeable core mortise cylinders, so a locksmith stocking either core format uses the same cam part number for a DL4000 opening.
4) Do I need a new mortise cylinder or can I just change the cam?
If your Schlage FSIC or SFIC mortise cylinder is otherwise sound and only the cam is wrong for a Corbin Russwin DL4000, changing the cam alone is the fix. The B520-254 replaces the driver on the back of the cylinder; the cylinder body, housing and core stay in place, so keying is unaffected.
5) Is the Schlage B520-254 cam a commercial grade part?
It is a commercial part. The B520-254 is sold for commercial door hardware use, which is consistent with where you find Corbin Russwin DL4000 locks and interchangeable core keying systems: institutional, multi-family, and MRO facilities running master key systems rather than residential doors.
How fast can I get the Schlage B520254 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 B520254 come with a warranty?
Absolutely. The Schlage B520254 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 B520254?
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 B520254 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.