Schlage B520-734 Modular Clove...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$20.30
$14.68
Schlage B520-734 Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200, A65, BEST 30H/40H Series

Schlage B520-734 Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200, A65, BEST 30H/40H Series

(No reviews yet) Write a Review

Model: B520-734

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

$20.30
$14.68
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Schlage B520-734 Modular Clover Mortise Cylinder Cam for Corbin Russwin ML2200, A65, BEST 30H/40H Series

The Schlage B520-734 is a Modular Clover Mortise Classic Conventional Cylinder Cam engineered for precise compatibility with Corbin Russwin A65 and ML2200 Master Ring Deadbolts manufactured before June 10, 1993, Russwin Cast Iron Residential Locks, and BEST 30H Deadbolts and 40H Series hardware. Designed to accommodate cylinder lengths of 1-1/8", 1-3/8", and 1-5/8", this replacement cam provides a reliable mechanical interface for demanding commercial lock applications where OEM-grade precision is essential.

Key Features

  • Multi-Length Cylinder Compatibility: Accommodates conventional mortise cylinders in 1-1/8", 1-3/8", and 1-5/8" lengths, offering versatile fit across a range of lock body configurations.
  • Modular Clover Classic Design: Features the classic modular clover cam profile engineered for accurate engagement with compatible Schlage, Corbin Russwin, Russwin, and BEST lock mechanisms.
  • Corbin Russwin A65 Compatibility: Designed specifically for use with Corbin Russwin A65 ML2200 Master Ring Deadbolts produced before June 10, 1993, ensuring a precise legacy-compatible replacement fit.
  • Russwin Cast Iron Residential Lock Support: Compatible with Russwin Cast Iron Residential Locks, extending the service life of existing installations without requiring full hardware replacement.
  • BEST 30H and 40H Series Compatibility: Supports BEST 30H Deadbolts and 40H Series hardware, making this cam a versatile solution for multi-brand commercial lock maintenance.
  • Commercial-Grade Replacement Part: Classified as a commercial replacement part within the Schlage Parts lineup, built to maintain the operational integrity of high-traffic door hardware installations.

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: B520-734
  • Features: Schlage Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties with Commercial-Grade Hardware
  • Industrial and Warehouse Facilities
  • Retrofit and Legacy Lock Maintenance Projects

Why Schlage B520?

Schlage replacement parts like the B520-734 are engineered to maintain the original performance standards of installed commercial lock hardware. The modular clover cam design ensures proper mechanical engagement across multiple cylinder lengths, 1-1/8", 1-3/8", and 1-5/8", and supports legacy compatibility with Corbin Russwin, Russwin, and BEST lock systems. For facilities managers and locksmiths requiring a dependable OEM-grade component, the Schlage B520-734 delivers the precise fit needed to restore full lock function without full hardware replacement.

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:
B520-734
Features:
Schlage Parts

Schlage B520-734 – Frequently Asked Questions

1) Which locks does the Schlage B520-734 mortise cylinder cam actually fit?
The B520-734 modular clover cam is made for Corbin Russwin A65 and ML2200 Master Ring Deadbolts built before June 10, 1993, Russwin cast iron residential locks, and BEST 30H Deadbolts plus 40H Series hardware. That June 1993 cutoff matters on the Corbin Russwin side: later production changed, so confirm the age of the lock body before you order this cam for an A65 or ML2200.
2) Will this cam work with a 1-3/8 inch mortise cylinder?
Yes. The B520-734 cam is cut to work with conventional mortise cylinders in 1-1/8, 1-3/8 and 1-5/8 inch lengths, so a standard 1-3/8 inch cylinder is covered. Cylinder length does not change the cam you need here, which is why one part number covers all three.
3) Can I use this cam to put a Schlage mortise cylinder into a BEST 40H lock?
That is exactly the job it does. Fit the B520-734 clover cam to a conventional mortise cylinder in 1-1/8, 1-3/8 or 1-5/8 inch length and it gives the correct mechanical engagement with BEST 30H deadbolts and 40H Series lock bodies, so you can key the opening into your own Schlage system without replacing the lock.
4) My Corbin Russwin ML2200 is newer than 1993 - will this cam still fit?
Not by this spec. The B520-734 is called out for A65 and ML2200 Master Ring Deadbolts manufactured before June 10, 1993. For a later ML2200 you need the cam matched to that production, so check the date code or the existing cam profile before ordering rather than assuming the clover cam carries over.
5) What is a mortise cylinder cam and why would I need to replace one?
The cam is the small flat tailpiece on the back of a mortise cylinder that turns with the plug and drives the lock body's retractor or bolt. Different lock makers use different cam shapes, so when you swap a cylinder into another brand's lock, or the original cam is worn or bent, you change the cam rather than the whole cylinder. The Schlage B520-734 is the modular clover profile used to drive Corbin Russwin, Russwin and BEST mechanisms.
6) Does the B520-734 come with the cylinder, or is it just the cam?
Just the cam. The B520-734 is a single replacement component that mounts to a conventional mortise cylinder you already have or are buying separately. If you are standardizing a building, order the cylinders and keying separately and use this cam to match each lock brand you are retrofitting.
7) Do I have to order a different cam for each cylinder length in my building?
No. One part number covers all three conventional mortise cylinder lengths, 1-1/8, 1-3/8 and 1-5/8 inch, so a property manager stocking spares for doors of varying thickness only needs the one cam on the shelf for Corbin Russwin, Russwin and BEST openings.
8) Is the B520-734 cam meant for commercial hardware or residential locks?
It is classified as a commercial replacement part, and the usual applications are office buildings, schools, hospitals, government facilities and multi-tenant buildings running commercial-grade hardware. The one residential exception called out is Russwin cast iron residential locks, which it also fits.
How fast can I get the Schlage B520-734 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 B520-734 come with a warranty?
Absolutely. The Schlage B520-734 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 B520-734?
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 B520-734 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.
!