Corbin Russwin 487K11 27A1 5 a...
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$63.00
$58.70
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Corbin Russwin 487K11 27A1 5 and 6-Pin X Class Mortise Cylinder Plug, 1-1/8" with A Keyway

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Model: 487K11 27A1 626
$63.00
$58.70

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

$63.00
$58.70
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Corbin Russwin 487K11 27A1 5 and 6-Pin X Class Mortise Cylinder Plug with A Keyway

The Corbin Russwin 487K11 27A1 is an individual X Class replacement plug designed for 1-1/8" mortise cylinder applications. Supporting both 5-pin and 6-pin configurations, this commercial-grade cylinder plug features an A keyway and is engineered for seamless compatibility with Corbin Russwin mortise lock systems. Ideal for cylinder rekeying or replacement in demanding commercial environments where precision and reliability are required.

Key Features

  • Mortise Cylinder Compatibility: Designed specifically for 1-1/8" mortise cylinder applications, ensuring a precise fit with compatible Corbin Russwin mortise lock hardware.
  • 5 and 6-Pin Configuration: Supports both 5-pin and 6-pin tumbler arrangements, providing flexibility for various keying requirements and security levels.
  • X Class Plug: Individual X Class designation for straightforward identification and compatibility within the Corbin Russwin cylinder parts system.
  • A Keyway: Features the A keyway profile for use with compatible Corbin Russwin key blanks and master key systems.
  • Commercial-Grade Construction: Engineered for commercial applications requiring consistent, long-term performance in high-use environments.
  • Replacement Part: Serves as a direct replacement plug for Corbin Russwin mortise cylinders, supporting rekeying operations and cylinder maintenance without full hardware replacement.

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: 487K11 27A1
  • 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 487K11?

Corbin Russwin cylinder parts are purpose-built for professional-grade commercial door hardware applications, delivering the precision engineering and reliable performance that locksmiths and facility managers depend on. The 487K11 27A1 plug upholds Corbin Russwin's reputation for quality in mortise cylinder components, offering a dependable replacement solution for maintaining the security integrity of commercial locking systems.

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:
487K11 27A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K11 27A1 626 – Frequently Asked Questions

1) Will this plug work in a 5-pin cylinder, or only 6-pin?
Both. The 487K11 plug supports 5-pin and 6-pin tumbler arrangements, so it covers standard 5-pin housekeeping keying as well as 6-pin systems used where a larger masterkey hierarchy is in place.
2) What keyway options does the Corbin Russwin 487K11 come in?
A1 and A2 keyways are both available. Both sit in Corbin Russwin's A keyway family, so the plug has to match the keyway of the existing system, A1 plugs take A1 keys and A2 plugs take A2 keys. Pull a key from the door and confirm the section before you order, because a plug in the wrong section will not accept the keys already issued in the building.
3) Can I use this plug to rekey a Corbin Russwin mortise cylinder without buying a new cylinder?
That is what it is for. Swapping the X Class plug lets a locksmith change the keying or replace a worn or damaged plug while keeping the existing cylinder shell and lock body in place, which is the cheaper route on a large commercial building where dozens of doors share the same system.
4) I have a Schlage or BEST keyway system, can I still use the Corbin Russwin 487K11 plug?
No. This plug is cut for the Corbin Russwin A keyway and only fits Corbin Russwin 1-1/8 inch mortise cylinders. On a Schlage C system look at the Schlage 20-057-C full size interchangeable core in C keyway, and on a BEST small format system the BEST 1C Series 5-pin core or the 1CB 150 Series interchangeable core.
5) I need a complete 1-1/8 inch mortise cylinder, not just the plug. What should I order instead of the Corbin Russwin 487K11 27A1?
The 487K11 27A1 is a replacement plug only, sold as an individual X Class plug for 1-1/8 inch mortise cylinder applications, so it goes into a cylinder shell you already have. If you need a whole cylinder, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder cut to the Schlage C keyway. Note that the MC65 is a C keyway part and the 487K11 plug is an A keyway part, so the MC65 will not key into a Corbin Russwin A system.
6) The cylinder I am replacing is in a key-in-lever lock, not a mortise lock. Is the 487K11 27A1 the right part?
No. The 487K11 27A1 plug fits 1-1/8 inch mortise cylinders. Key-in-knob and key-in-lever locks take a different cylinder body: the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the 1599 Series is a key-in-knob replacement cylinder, and the 1579 Series is a knob and lever cylinder made for Sargent locks. The Falcon A23161-05 G is a key in lever cylinder in the RU/T series with a 6-pin G keyway, keyed different and supplied with two cut keys.
7) We want to stop rebuilding cylinders and move to interchangeable cores. What is the alternative to the 487K11 27A1 plug?
The 487K11 27A1 supports rekeying by replacing the plug inside an existing 1-1/8 inch mortise cylinder, which means the cylinder comes out of the door for service. An interchangeable core program lets you swap the core with a control key instead: the BEST 1C Series standard 5-pin core and the BEST Peaks 1CB 150 Series interchangeable core cylinder both work that way, and the BEST 1CDF is a drill resistant patented 7-pin interchangeable core in brass. Schlage's equivalent is the 20-057 6-pin full size interchangeable core rim cylinder with convertible tailpiece cam, or the 20-057-C FSIC core in C keyway, 643E aged bronze.
8) What does the 27, 57, 67 or 77 number mean when ordering the 487K11?
That figure is the design designation on the order, and the 487K11 is offered in 27, 57, 67 and 77. It has to be specified along with keyway and finish, so match it to the part number stamped on or listed for the cylinder you are servicing rather than picking at random.
9) What do I need to give my locksmith to order the correct 487K11 plug?
Three things: the design number (27, 57, 67 or 77), the keyway section (A1 or A2), and the finish (606 Satin Brass or 626 Satin Chrome). Pin count is not a separate order item since the plug handles both 5-pin and 6-pin builds.
10) I have a deadbolt that needs a new cylinder. Does the Corbin Russwin 487K11 27A1 work?
The 487K11 27A1 is a mortise cylinder plug for Corbin Russwin mortise lock systems, so it is not a deadbolt cylinder. The Kaba Ilco 1549 Series is a key-in-deadbolt cylinder built for that function. On residential style handlesets and deadbolts, the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder, the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece, and the 1065140 is a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders.
11) What is the closest equivalent to the 487K11 27A1 for a narrow stile aluminum storefront door?
The 487K11 27A1 plug is intended for Corbin Russwin mortise cylinders in commercial mortise locks, not for narrow stile deadlock hardware. For aluminum storefront, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 Series with a 1/2 inch minimum door thickness. Where a cylinder pull is used with an MS1847 deadlock or deadlatch, the Adams Rite 4024 mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws; the 4026 five pin cylinder pull is the wood door version for the Adams Rite 5017 deadlock or deadlatch.
12) Is the BEST 12E dummy rim cylinder a substitute for the 487K11 27A1 plug?
No. The BEST 12E Series is a dummy rim cylinder with a 1-5/32 inch diameter, meaning it fills the opening and does not operate a lock. The Corbin Russwin 487K11 27A1 is a working 5 and 6-pin X Class plug with an A keyway that carries the pinning for a keyed 1-1/8 inch mortise cylinder.
13) For an Emtek door set, do I use the Corbin Russwin 487K11 plug or something else?
Use an Emtek-specific cylinder. The Emtek CY4 is a cylinder sold each as an Emtek part, and the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece. The Corbin Russwin 487K11 27A1 is an A keyway plug for 1-1/8 inch Corbin Russwin mortise cylinders and is ordered when you are rebuilding or rekeying that cylinder.
14) Is this plug suitable for a high-traffic commercial building or is it a residential part?
Strictly a commercial part. It is built for Corbin Russwin mortise cylinders in office buildings, schools, hospitals, government facilities, retail, warehouses and multi-tenant residential properties, the kind of openings that get cycled hard every day.
15) Which cylinder option gives more attack resistance than a standard plug rebuild with the 487K11 27A1?
The 487K11 27A1 is a standard commercial X Class plug supporting 5-pin and 6-pin tumbler arrangements in an A keyway. If the opening calls for a hardened, patented key option, the BEST 1CDF is a drill resistant preferred patented interchangeable core in 7-pin brass, 150 Series. The Medeco cylinders in the same family, such as the 1075127 5-pin rim type and the 1012040 6-pin rim cylinder, are patented key products in rim format rather than mortise plugs.
How fast can I get the Corbin Russwin 487K11 27A1 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 487K11 27A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K11 27A1 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 487K11 27A1 626?
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