Corbin Russwin 487K17 7-Pin X ...
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$67.00
$61.58
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Corbin Russwin 487K17 7-Pin X Class Mortise Cylinder Plug, 27A1 Keyway, 1-1/2" Satin Brass Replacement Part

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Model: 487K17 27A1 626

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

$67.00
$61.58
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Corbin Russwin 487K17 7-Pin X Class Mortise Cylinder Plug, 27A1 Keyway, 1-1/2", Satin Brass

The Corbin Russwin 487K17 27A1 is a 7-Pin X Class cylinder plug engineered for 1-1/2" mortise cylinder applications. Featuring the 27A1 keyway and a Satin Brass finish, this replacement plug is a genuine Corbin Russwin cylinder component designed for commercial-grade mechanical lock systems. Its 7-pin configuration delivers enhanced key control and security depth appropriate for demanding commercial environments.

Key Features

  • 7-Pin X Class Configuration: Advanced 7-pin X Class plug design provides heightened key control and security performance for commercial applications.
  • 1-1/2" Mortise Compatibility: Sized at 1-1/2" for direct compatibility with standard mortise cylinder housings used in commercial door hardware.
  • 27A1 Keyway: Factory-specified 27A1 keyway ensures proper key section compatibility within the Corbin Russwin keying system.
  • Satin Brass Finish: Satin Brass finish provides a clean, professional aesthetic consistent with coordinated commercial hardware installations.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component for reliable fit and performance in compatible lock systems.
  • Commercial-Grade Application: Designed and rated for commercial use, making it suitable for high-traffic and security-sensitive 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: 487K17 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 487K17?

Corbin Russwin cylinder components are engineered to exacting commercial standards, and the 487K17 27A1 plug is no exception. Its 7-pin X Class design delivers superior key control depth, while genuine OEM construction ensures consistent fit and reliable operation within compatible Corbin Russwin mortise cylinder assemblies. Purpose-built for commercial environments where security integrity and component quality cannot be compromised.

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:
487K17 27A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K17 27A1 626 – Frequently Asked Questions

1) What does the 27A1 keyway mean for keying my building?
27A1 is the factory key section this plug is cut for, so the keys that operate it have to be on the Corbin Russwin 27A1 section. Order it when you are adding or rebuilding a cylinder inside an existing 27A1 X Class masterkey system. If your building is keyed to a different section, a 27A1 plug will not accept your keys.
2) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 487K17?
The 487K17 27A1 is a replacement plug for a 1-1/2 inch Corbin Russwin mortise cylinder, not a finished cylinder assembly, so it only helps if you are rebuilding an existing housing. When you need a whole mortise cylinder to drop into the lock, the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a Grade 1 mortise cylinder in the 4036 Series. Both arrive as complete cylinders; the 487K17 is the keyed core component only.
3) Is a BEST interchangeable core the same thing as the Corbin Russwin 487K17 plug?
No. The 487K17 27A1 is a 7-pin X Class plug that is installed into a Corbin Russwin 1-1/2 inch mortise cylinder shell, so servicing it means taking the cylinder apart. A BEST interchangeable core such as the 1CB 150 Series, the 1C Series standard 5-pin core, or the drill resistant 1CDF 7-pin brass core is a self-contained core that is pulled and replaced with a control key, which requires an interchangeable core housing rather than a conventional mortise cylinder.
4) Why choose a 7-pin X Class plug over a standard 6-pin?
The seventh pin adds another chamber of keying depth, which is what gives a masterkeyed system more usable change keys and tighter key control. X Class is Corbin Russwin's restricted platform, so it is specified where key duplication needs to be controlled, offices, schools, healthcare, government. A 6-pin commercial cylinder like the Detex MC65 in Schlage C keyway is the simpler, open-keyway route when key control is not the driver.
5) I need a whole cylinder, not a plug. What should I look at instead?
For a complete unit, look at a mortise or rim cylinder rather than a plug. Options include the Adams Rite 4036 five-pin Grade 1 mortise cylinder, the Detex MC65 1-1/8 inch 6-pin mortise cylinder in Schlage C, or Schlage's 20-021 and 20-022 six-pin rim cylinders (vertical and horizontal tailpiece cams respectively). None of those are on the Corbin Russwin 27A1 section, so they operate on their own keys.
6) Can I use this plug if I want interchangeable cores instead?
No. The 487K17 is a fixed cylinder plug, so re-keying means pulling the cylinder and working the plug. If you want cores you can swap by hand, go to an interchangeable-core platform instead, such as the BEST 1CB 150 Series IC core, the BEST 1CDF drill-resistant patented 7-pin core, or Schlage's 20-057 full-size interchangeable core.
7) What do I use for an exit device or rim application instead of the Corbin Russwin 487K17?
The 487K17 27A1 is a mortise cylinder plug 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 and two keys, and the 20-022 is the same cylinder with a horizontal tailpiece cam. If the building is standardized on full size interchangeable core, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam.
8) I need a cylinder for a key-in-lever or key-in-knob lock, not a mortise cylinder plug. What are my options?
The Corbin Russwin 487K17 27A1 plug fits 1-1/2 inch mortise cylinder housings only. For key-in-knob and key-in-lever bodies, the Kaba Ilco 1539 Series is a universal key-in-knob and lever cylinder, the 1599 is a key-in-knob replacement cylinder, and the 1579 is a knob and lever cylinder made for Sargent locks. The Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with two cut keys.
9) For an aluminum storefront door with an Adams Rite deadlock, does the Corbin Russwin 487K17 apply?
No. The 487K17 27A1 is a Corbin Russwin mortise cylinder plug for commercial mortise cylinder housings. Adams Rite narrow stile deadlocks take purpose-matched hardware: 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 the 5017 wood door deadlock and deadlatch.
10) Can I use the Corbin Russwin 487K17 plug on a residential deadbolt or handleset?
The 487K17 27A1 is specified for commercial mortise cylinder housings, so it is not the part for a residential deadbolt or handleset. For those, the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts.
11) What finishes does the 487K17 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder collar and the lock trim already on the door, since the plug face is the part you see in the escutcheon.
12) Is this plug suitable for high-traffic commercial doors?
Yes. The 487K17 is a commercial-grade Corbin Russwin cylinder component, used in office buildings, schools, hospitals, municipal buildings, retail, warehouses and multi-tenant residential. It is not a residential part.
13) The 487K17 plug comes in 606 satin brass and 626 satin chrome. What if I need a different finish family for an aged bronze opening?
The Corbin Russwin 487K17 27A1 plug is offered in 606 satin brass and 626 satin chrome. If the opening is being finished in aged bronze and you are working with a full size interchangeable core rather than a Corbin Russwin mortise plug, the Schlage 20-057-C is an FSIC cylinder in the C keyway supplied in 643E aged bronze. Note that is a different keying system and a different cylinder format, so it is a specification change, not a drop-in swap.
14) I need a non-keyed filler for a rim opening, not a working plug like the 487K17. What works?
The Corbin Russwin 487K17 27A1 is a keyed 7-pin plug and is always a functioning cylinder component. When the opening needs a cylinder that fills the hole without operating anything, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the dummy equivalent for rim prep.
How fast can I get the Corbin Russwin 487K17 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 487K17 27A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K17 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 487K17 27A1 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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