Corbin Russwin 487K15 7-Pin X ...
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Corbin Russwin 487K15 7-Pin X Class Mortise Cylinder Plug, 1-3/8" Mortise, 27B1 Keyway

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Model: 487K15 27B1 626

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

$67.00
$61.58
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Corbin Russwin 487K15 7-Pin X Class Mortise Cylinder Plug, 1-3/8" Mortise, 27B1 Keyway

The Corbin Russwin 487K15 27B1 is a 7-Pin X Class replacement cylinder plug engineered for commercial-grade mortise lock cylinders. Designed for a 1-3/8" mortise format and featuring the 27B1 keyway, this plug delivers precise, dependable keying performance in demanding institutional and commercial applications. Finished in Satin Brass, it integrates seamlessly into compatible Corbin Russwin cylinder assemblies requiring a high-security X Class plug.

Key Features

  • 7-Pin X Class Security: Features a 7-pin X Class plug configuration for enhanced key control and security in commercial locking systems.
  • 1-3/8" Mortise Format: Precisely sized at 1-3/8" for direct compatibility with standard mortise cylinder applications.
  • 27B1 Keyway: Configured with the Corbin Russwin 27B1 keyway for accurate key interchange and system keying compatibility.
  • Satin Brass Finish: Satin Brass finish provides a professional aesthetic and durability appropriate for commercial environments.
  • Corbin Russwin Cylinder Parts: Genuine Corbin Russwin cylinder component, ensuring OEM-level fit and performance within compatible assemblies.
  • Commercial-Grade Replacement Part: Engineered as a direct replacement plug for Corbin Russwin mortise cylinder assemblies, simplifying maintenance and rekeying operations.

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: Cylinders
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 487K15 27B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K15?

Corbin Russwin cylinder components are manufactured to exacting commercial standards, delivering reliable OEM-level performance in mortise lock systems. The 487K15 27B1 plug's 7-Pin X Class construction ensures consistent key engagement and long-term security integrity for professional installers and facility managers who depend on precision hardware. Engineered for commercial applications where cylinder accuracy and keyway compatibility are critical to overall system performance.

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:
Cylinders
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
487K15 27B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K15 27B1 626 – Frequently Asked Questions

1) Will the 487K15 plug work with my existing Corbin Russwin keys?
Only if your system runs the 27B1 keyway. This plug is cut for the Corbin Russwin 27B1 keyway, so keys on any other Corbin Russwin keyway will not enter it. Check the keyway stamped on your existing cylinder or key bow before ordering, because the plug cannot be converted to a different keyway.
2) Does the 487K15 take 6-pin or 7-pin keys?
Seven. The 487K15 is a 7-pin X Class plug, so it pins and keys as a 7-pin chamber. A 6-pin Corbin Russwin key will not operate it correctly, and your pinning kit and key blanks need to match the 7-pin X Class system.
3) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 487K15?
The Corbin Russwin 487K15 27B1 is a 7-pin X Class replacement plug for 1-3/8" mortise cylinder assemblies, so it goes into an existing cylinder body rather than replacing one. For a complete mortise cylinder, the Detex MC65 is a 1-1/8" 6-pin commercial mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a five-pin mortise cylinder in the 4036 Series rated Grade 1 for doors 1/2" minimum thickness. Both are assembled cylinders, not plugs, and neither uses the Corbin Russwin 27B1 keyway.
4) Can I use a BEST interchangeable core instead of the Corbin Russwin 487K15 plug?
No. The 487K15 27B1 is a loose 7-pin X Class plug that is pinned into a Corbin Russwin mortise cylinder body using the 27B1 keyway. BEST interchangeable cores such as the 1CB 150 Series, the 1C Series standard 5-pin core, and the 1CDF drill-resistant patented 7-pin brass 150 Series core are figure-eight cores that drop into BEST-prepped interchangeable core housings. The housing style is different, so a BEST core is a choice you make when the lock is already IC-prepped, not a substitute for a conventional plug.
5) My opening uses a rim exit device, not a mortise lock. What cylinder do I use instead?
The Corbin Russwin 487K15 27B1 plug is built for 1-3/8" mortise cylinder assemblies and will not serve a rim device. For rim applications, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam supplied with 2 keys, and the Schlage 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam. If the facility is standardized on full size interchangeable core, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation to what the exit device requires.
6) Can I use this plug to standardize keying across a building?
That's the normal use. The 487K15 is a commercial 7-pin X Class plug on the 27B1 keyway, so every opening you rebuild with it keys into the same X Class system. It's the part facility teams use in offices, schools, healthcare, government buildings, retail, warehouses and multi-tenant residential when they are rekeying Corbin Russwin mortise cylinders rather than replacing whole locks.
7) I need a whole cylinder, not a plug. What else is there?
If you need a complete unit, look at a mortise or rim cylinder rather than a plug. The Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway. The Adams Rite 4036 is a Grade 1 five-pin mortise cylinder. On the rim side, Schlage 20-021 (vertical tailpiece cam) and 20-022 (horizontal cam) are 6-pin rim cylinders supplied with two keys. None of those key into a Corbin Russwin 27B1 system, so they suit a new keying scheme rather than a match to existing Corbin Russwin keys.
8) How is a 7-pin X Class plug different from an interchangeable core?
Different service model. The 487K15 is a plug that gets pinned and fitted inside a Corbin Russwin mortise cylinder, so swapping it is a bench operation. An interchangeable core, like the BEST 1CB 150 Series or the 7-pin drill resistant BEST 1CDF, pulls out with a control key and drops a new core in at the door with no disassembly. If your priority is fast field rekeying across many doors, an IC system suits better; if you are maintaining existing Corbin Russwin mortise cylinders, the plug is the correct part.
9) What is the difference between the Corbin Russwin 487K15 plug and a key-in-knob or key-in-lever cylinder?
The 487K15 27B1 is a mortise cylinder plug, the keyed core that sits inside a threaded mortise cylinder body. Key-in-knob and key-in-lever cylinders are a different format that replaces the keyed unit inside a knob or lever set: the Kaba Ilco 1539 Series is a universal key-in-knob/lever cylinder, the 1579 Series is a knob and lever cylinder for Sargent locks, the 1599 Series is a key-in-knob replacement cylinder, and the Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with 2 cut keys. Choose by the lock body you are servicing, not by keyway alone.
10) I am rekeying a deadbolt, not a mortise lock. Is the 487K15 the right part?
No. The Corbin Russwin 487K15 27B1 is a commercial mortise cylinder plug in the 1-3/8" mortise format. For deadbolt work, the Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, and Medeco offers several retrofit options: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, and the 1065140 is a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders.
11) What looks like a cylinder substitute for the 487K15 but will not actually key an opening?
Two things to watch. The BEST 12E Series is a dummy rim cylinder with a 1-5/32" diameter, meaning it fills the cylinder prep without operating a lock. Adams Rite cylinder pulls are also cylinder-related but are pull assemblies, not cylinders you can pin: the 4024 mounts with a trim plate for MS1847 deadlock systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the MS1847, and the 4026 is a five pin tumbler cylinder pull for wood door applications with the 5017 wood door deadlock. The Corbin Russwin 487K15 27B1 is a working 7-pin X Class plug for mortise cylinder assemblies.
12) We are standardizing a campus on full size interchangeable core. Does the Corbin Russwin 487K15 fit that plan?
The 487K15 27B1 is a conventional 7-pin X Class plug for Corbin Russwin 1-3/8" mortise cylinder assemblies, so it suits buildings staying on conventional mortise cylinders where the 27B1 keyway is already in the system. For an FSIC standard, the Schlage 20-057 is a 6-pin FSIC rim cylinder with convertible tailpiece cam and the 20-057-C is a full size interchangeable core in the C keyway with a 643E Aged Bronze finish. BEST interchangeable cores such as the 1CB 150 Series are a separate core platform again. Pick one core platform per facility so keys and rekeying stay consistent.
13) What finishes does the Corbin Russwin 487K15 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder face and the rest of the trim on the opening, since the plug face is visible at the keyway.
14) Is the 487K15 a genuine Corbin Russwin part or aftermarket?
Genuine Corbin Russwin. It is an OEM cylinder component, which matters on a plug because the tolerances between plug and shell decide whether the key turns cleanly over thousands of cycles.
15) I need a Satin Chrome cylinder part for an Emtek or Medeco-equipped door. How does that compare to the Corbin Russwin 487K15?
The Corbin Russwin 487K15 27B1 plug comes in 606 Satin Brass and 626 Satin Chrome, but it is specific to Corbin Russwin 1-3/8" mortise cylinder bodies and the 27B1 keyway. For Emtek hardware, the Emtek CY4 is a cylinder sold each, and the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder supplied with an Emtek tailpiece. Those are matched to Emtek prep rather than to a Corbin Russwin mortise body.
How fast can I get the Corbin Russwin 487K15 27B1 626 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 Corbin Russwin 487K15 27B1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K15 27B1 626 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 Corbin Russwin 487K15 27B1 626?
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
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