Schlage B520-728 Modular Strai...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$66.70
$62.03
Schlage B520-728 Modular Straight Mortise Cylinder Cam for 1-1/8", 1-3/8", and 1-5/8" Conventional Cylinders

Schlage B520-728 Modular Straight Mortise Cylinder Cam for 1-1/8", 1-3/8", and 1-5/8" Conventional Cylinders

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Model: B520-728

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

$66.70
$62.03
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Schlage B520-728 Modular Straight Mortise Cylinder Cam for Conventional Cylinders

The Schlage B520-728 is a Modular Straight Mortise Classic Cylinder Cam engineered for use with conventional cylinders in 1-1/8", 1-3/8", and 1-5/8" sizes. Designed specifically for compatibility with the Corbin Russwin Master Ring, this commercial-grade replacement cam provides a precise, reliable interface between the mortise cylinder and lock body. Built as a genuine Schlage part, the B520-728 ensures consistent operation and proper fit within compatible mortise lock assemblies.

Key Features

  • Multi-Size Cylinder Compatibility: Accommodates conventional cylinders in 1-1/8", 1-3/8", and 1-5/8" sizes, providing flexibility across a range of mortise lock configurations.
  • Corbin Russwin Master Ring Compatible: Specifically engineered for use with the Corbin Russwin Master Ring, ensuring proper cam engagement and reliable lock actuation.
  • Modular Straight Design: Classic straight cam geometry supports straightforward installation and direct replacement in compatible mortise lock assemblies.
  • Genuine Schlage Replacement Part: Manufactured as an authentic Schlage component, maintaining OEM fit, form, and function for commercial door hardware applications.
  • Commercial Application Grade: Rated for commercial use, making it suitable for demanding institutional and commercial environments where reliable hardware performance is essential.

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: B520-728
  • Features: Schlage Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Retail Establishments

Why Schlage B520?

Schlage replacement parts like the B520-728 are manufactured to exacting OEM standards, ensuring that each cam delivers the precise fit and reliable actuation required for professional mortise lock service and maintenance. Engineered for commercial-grade applications, the B520-728 supports dependable performance in high-demand environments where hardware integrity is critical.

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:
B520-728
Features:
Schlage Parts

Schlage B520-728 – Frequently Asked Questions

1) What cylinder lengths does the Schlage B520-728 mortise cam work with?
The B520-728 straight cam is made for conventional mortise cylinders in 1-1/8, 1-3/8, and 1-5/8 inch lengths. That covers the three common commercial mortise cylinder depths, so one cam part number works whether the door prep took a short cylinder or a longer one for a thicker door.
2) Will a Schlage B520-728 cam work with a Corbin Russwin Master Ring cylinder?
Yes. The B520-728 is specifically built for use with the Corbin Russwin Master Ring, so the cam engages correctly and drives the lock body as intended. If you are servicing Corbin Russwin Master Ring cylinders, this is the straight cam variant to order.
3) What exactly is a mortise cylinder cam and why would I need to replace one?
The cam is the small flat tail on the back of a mortise cylinder that rotates with the key and actuates the lock body's retractor. It is not the lock and not the cylinder itself. Cams get swapped when a cylinder is being refitted to a different lock body, when the original cam is worn or bent, or when the existing cam geometry does not drive the lock correctly. The B520-728 is the straight-geometry replacement.
4) Does the B520-728 come with the cylinder, or is it the cam only?
Cam only. The B520-728 is a replacement cam for a conventional mortise cylinder you already have or are ordering separately. You will also need the cylinder retaining screws that came with your lock body, plus the cylinder itself in 1-1/8, 1-3/8, or 1-5/8 inch length.
5) Will the B520-728 straight cam work with an interchangeable core cylinder?
No. The B520-728 is specified for conventional mortise cylinders, not small format or large format interchangeable core housings. IC mortise housings use their own cam and driver arrangement, so ordering this cam for an IC application gets you a part that will not mount.
6) Is the Schlage B520-728 cam suitable for high-traffic institutional doors?
It is a commercial-rated Schlage part, intended for office buildings, schools, healthcare, government facilities, warehouses, retail, and multi-tenant residential. For a facility standardizing mortise hardware, it is the OEM cam to keep on the shelf for cylinder service work rather than a residential-duty substitute.
How fast can I get the Schlage B520-728 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 B520-728 come with a warranty?
Absolutely. The Schlage B520-728 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 B520-728?
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 B520-728 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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