Corbin Russwin 487K15 7-Pin X ...
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$67.00
$61.58
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Corbin Russwin 487K15 7-Pin X Class Mortise Cylinder Plug, 1-3/8" with 77B2 Keyway

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Model: 487K15 77B2 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 with 77B2 Keyway in Satin Brass

The Corbin Russwin 487K15 is a 7-Pin X Class replacement plug designed for 1-3/8" mortise cylinder applications. Featuring the 77B2 keyway and a Satin Brass finish, this commercial-grade cylinder plug is engineered as a precision replacement part for Corbin Russwin mortise lock systems. Designed for commercial door hardware applications, it delivers the reliable keying performance and security class that demanding institutional and commercial facilities require.

Key Features

  • 7-Pin X Class Security: X Class plug design provides enhanced key control and security for commercial mortise cylinder applications.
  • 1-3/8" Mortise Cylinder Format: Precisely sized at 1-3/8" for direct compatibility with standard mortise cylinder housings and lock bodies.
  • 77B2 Keyway: Fitted with the 77B2 keyway for integration into Corbin Russwin keying systems and master key programs.
  • Satin Brass Finish: Factory-applied Satin Brass finish coordinates with complementary Corbin Russwin hardware and trim.
  • Genuine Corbin Russwin Cylinder Part: An authentic OEM replacement component engineered to exact Corbin Russwin specifications for assured fit and function.
  • Commercial-Grade Construction: Built to the performance standards required for high-traffic commercial 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: Cylinders
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 487K15 77B2
  • 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 precise OEM tolerances, ensuring seamless integration with existing Corbin Russwin mortise lock systems. The 487K15 plug's 7-Pin X Class configuration and 77B2 keyway deliver the key control and security performance that commercial facilities depend on. Choosing genuine Corbin Russwin replacement parts ensures continued system integrity and long-term operational reliability.

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 77B2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K15 77B2 626 – Frequently Asked Questions

1) Is the Corbin Russwin 487K15 a complete mortise cylinder or just the plug?
It is the plug only, not a full cylinder. The 487K15 is a 7-Pin X Class replacement plug for 1-3/8 inch mortise cylinder applications, sold as a replacement part. If your housing, shell, cam and pinning are still good and you only need to re-key or restore the plug, this is the part. If you need a complete assembly with shell and cam, order a full mortise cylinder instead, such as the Adams Rite 4036 mortise cylinder or the Detex MC65 1-1/8 inch 6-pin mortise cylinder.
2) Will the 487K15 plug work in my 1-1/8 inch mortise cylinder?
No. The 487K15 plug is sized for the 1-3/8 inch mortise cylinder format, so it belongs in a 1-3/8 inch Corbin Russwin housing. A 1-1/8 inch cylinder takes a shorter plug. For a 1-1/8 inch mortise application from another line, the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder.
3) What keyway does the Corbin Russwin 487K15 plug come in, and can it go into my existing master key system?
It is cut for the 77B2 keyway, one of the Corbin Russwin keyway family, so it drops into an existing Corbin Russwin keying or master key program using 77B2. If your building is keyed on a different Corbin Russwin section, the plug has to match that section instead, because a keyway is not interchangeable across sections.
4) If the whole mortise cylinder needs replacing instead of just the plug, what can be used?
The Corbin Russwin 487K15 is a replacement plug for 1-3/8 inch mortise cylinder applications, so it only helps when the cylinder housing itself is sound and you are re-plugging to change the keying. If the housing is damaged or you want a complete unit, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security from the 4036 Series, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway. Note that both are complete cylinders in their own keyway systems, not Corbin Russwin 77B2 parts, so they will not key into an existing Corbin Russwin master key program.
5) What is the difference between a 7-pin plug like the 487K15 and an interchangeable core?
The Corbin Russwin 487K15 is a 7-pin X Class plug that is fitted into a 1-3/8 inch mortise cylinder housing, so rekeying means pulling and re-pinning the plug at the bench. An interchangeable core system instead lets a control key pull the whole core: the BEST 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill-resistant patented 7-pin brass interchangeable core in the 150 Series, and the Schlage 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Facilities that rekey often tend toward core systems; the 487K15 suits sites already standardized on Corbin Russwin 77B2 keying.
6) Can I use the 487K15 plug on a rim exit device cylinder?
No. The Corbin Russwin 487K15 is sized as a 1-3/8 inch mortise cylinder plug, which is a different format from a rim cylinder used behind an exit device. For rim applications, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam, with two keys supplied on each. Choose the cam orientation the exit device chassis calls for.
7) I need a cylinder for a key-in-knob or key-in-lever lock, not a mortise cylinder. What should I look at?
The Corbin Russwin 487K15 is a mortise format plug and will not fit a knob or lever chassis. For those, the Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent locks, the 1599 is a key-in-knob replacement cylinder, and the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T Series with a 6-pin G keyway, keyed different with two cut keys. For a deadbolt, the Kaba Ilco 1549 is a key-in-deadbolt cylinder.
8) Why does the 487K15 use 7 pins instead of 6, and does that affect keying?
Seven chambers is what the X Class design uses for key control. More chambers means more available combinations and deeper masterkey structures, which is why institutional facilities specify it. Practically, it also means your keys must be 7-pin X Class blanks and cuts; a 6-pin key from another system will not operate it. Several comparable cylinders are 6-pin, for example the Schlage 20-021 rim cylinder and the Detex MC65, and those are separate key systems entirely.
9) I manage a building keyed on Corbin Russwin. Can I standardize cylinders across doors with this part?
Yes, within the same keyway. Because the 487K15 carries the 77B2 keyway and the 7-Pin X Class configuration, every 1-3/8 inch mortise cylinder you rebuild with it operates on the same key system, which is how you keep one master across an entire facility. Doors using rim cylinders or interchangeable cores need their own matching part, not this plug.
10) Can I use the 487K15 plug in a Best or Schlage interchangeable core cylinder?
No. This plug is a Corbin Russwin mortise cylinder component and is not a small-format or full-size interchangeable core. Best interchangeable core products such as the 1CB 150 Series or the 1CDF 7-pin drill resistant core, and Schlage FSIC parts like the 20-057, are separate core formats with their own housings and keyways. Choose the part that matches the cylinder format already in the door.
11) What is a simpler 5-pin option than the 7-pin X Class 487K15?
The 487K15 uses a 7-pin X Class plug for enhanced key control. Where a standard 5-pin chamber count is acceptable, the BEST 1C5 is a standard 5-pin cylinder core, and the Adams Rite 4036 is a five-pin mortise cylinder rated Grade 1. Fewer chambers means a smaller keying population and no X Class key control, so match the choice to whether the facility is running a restricted master key program.
12) Is the 487K15 the right part for an aluminum storefront narrow stile door?
The 487K15 is a Corbin Russwin mortise cylinder plug intended for Corbin Russwin mortise lock systems in commercial openings. Narrow stile storefront work usually runs Adams Rite hardware instead: the 4024 cylinder pull mounts with a trim plate for MS1847 deadlock and deadlatch systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the same MS1847, and the 4026 is a five pin tumbler cylinder pull for wood doors using the 5017 wood door deadlock or deadlatch. Confirm which lock body is in the stile before ordering.
13) Which cylinder should I use for a residential-style handleset or Kwikset deadbolt retrofit?
Not the 487K15 - it is a commercial Corbin Russwin mortise plug. For handleset and deadbolt retrofits, the Medeco 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, the 1065244 is a 5-pin lazy motion rim cylinder with an Emtek tailpiece, and the 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder. Emtek owners can also use the Emtek CY4 cylinder, sold each.
14) I need a non-keyed filler for an unused cylinder hole - does the 487K15 work?
No. The Corbin Russwin 487K15 is a working 7-pin X Class keyed plug with the 77B2 keyway. For a hole that needs to be filled without a functioning key, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the dummy option in the set. Verify the prep is rim format before ordering it.
15) Is this plug suitable for high-traffic commercial doors, or is it a residential part?
Commercial. The 487K15 is built for commercial mortise lock systems in offices, schools, healthcare, government buildings, retail, warehouses and multi-tenant residential. It is not a residential-grade retrofit part.
16) Can I match a Satin Chrome or Satin Brass cylinder finish across brands?
The Corbin Russwin 487K15 plug is offered in 606 Satin Brass and 626 Satin Chrome, which covers the two most common commercial trim finishes. If you are also buying a full size interchangeable core for the same opening, the Schlage 20-057-C is supplied in 643E Aged Bronze with a C keyway, which is a darker finish and will read differently next to 606 or 626 trim.
How fast can I get the Corbin Russwin 487K15 77B2 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 77B2 626 come with a warranty?
Absolutely. The Corbin Russwin 487K15 77B2 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 77B2 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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