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- L Series
- Certified Schlage Parts
- Made With Strong Materials
- Many Parts Are Finish Specific
Manufacturer Resources
Product Specs
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Mounting Plates
- Commercial/Residential:
- Commercial
- Compatibility:
- Mortise Locks
- Series:
- L Series
- Subcategory:
- Parts and Accessories
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware
Schlage L583-255 – Frequently Asked Questions
1) What does the Schlage L583-255 cam actually do, and is it a lock or just a part?
The L583-255 is a replacement cam for a full size interchangeable core (FSIC) mortise cylinder used with Schlage L Series mortise locks. It is the small driver piece on the back of the cylinder that turns the lock's hub, not the cylinder and not the lock body. Order it when you are building up or converting an FSIC mortise cylinder for an L Series opening and need the correct L cam on it.
2) Will a Schlage L583-255 cam work on a cylindrical lock or a rim cylinder?
No. The L583-255 cam is for mortise cylinders serving Schlage L Series mortise locks. A rim cylinder uses a tailpiece rather than a mortise cam, and a cylindrical lock (Schlage ND or AL, for example) takes a key-in-lever cylinder with its own retainer, so this part will not adapt either one. If the door has a mortise lock case with a threaded cylinder hole, this is the right family of part.
3) I have a small format interchangeable core mortise cylinder. Does this Schlage cam fit it?
Not the right cam. The L583-255 is specified for full size interchangeable core mortise cylinders. SFIC housings use their own cam set matched to the small format core, so a full size IC cam will not seat correctly. Confirm the core is the larger full size Schlage IC before ordering this one.
4) Is the Schlage L583-255 an OEM Schlage part or an aftermarket copy?
It is a certified Schlage part, not a generic aftermarket cam. For a locksmith rebuilding an L Series mortise cylinder that matters, because the cam has to index the lock hub exactly the way the factory cylinder did or the key will turn without retracting the latch.
5) I am converting my Schlage L Series mortise locks to interchangeable core. What do I need besides the cam?
The cam alone will not convert an opening. You need the FSIC mortise cylinder housing and the full size interchangeable core itself, keyed to your system; the L583-255 supplies the L cam that lets that assembly drive the L Series mortise lock. Buy the cam as part of that build or as a replacement when an existing FSIC mortise cylinder loses or damages its cam.
6) Does the finish of the Schlage L583-255 cam matter if my lock is a different finish?
Cams sit behind the cylinder inside the lock case, but Schlage does build many L Series parts as finish specific, so the part you order is tied to the finish family it was made for rather than being a universal blank. Match the part to the cylinder and lock you are servicing rather than assuming any L cam drops in.
7) Is the L583-255 cam suitable for a commercial building or is it a residential part?
Commercial. It is a service part for Schlage L Series mortise locks, which is the line used on office, school, healthcare and multi family openings, so it fits into a facility standardization program where every mortise cylinder is being converted to full size interchangeable core.
How fast can I get the Schlage L583-255 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 L583-255 come with a warranty?
Absolutely. The Schlage L583-255 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 L583-255?
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 L583-255 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.