Corbin Russwin 487K19 7-Pin X ...
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$89.00
$77.42
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Corbin Russwin 487K19 7-Pin X Class Mortise Cylinder Plug, 1-3/4 in. with 27A1 Keyway

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Model: 487K19 27A1 626

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

$89.00
$77.42
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Corbin Russwin 487K19 7-Pin X Class Mortise Cylinder Plug with 27A1 Keyway

The Corbin Russwin 487K19 is a 7-Pin X Class replacement plug designed for 1-3/4" mortise cylinder applications, featuring the 27A1 keyway and a Satin Brass finish. Engineered as a commercial-grade cylinder part, this plug provides a precise, factory-quality fit for compatible Corbin Russwin mortise lock assemblies. Ideal for facilities management professionals and locksmiths requiring a reliable, brand-matched replacement component.

Key Features

  • 7-Pin X Class Configuration: Seven-pin tumbler arrangement in the X Class specification delivers enhanced key control and security for commercial mortise lock applications.
  • 1-3/4" Mortise Plug Format: Precision-machined to 1-3/4" mortise cylinder dimensions for accurate, drop-in compatibility with appropriate Corbin Russwin mortise hardware.
  • 27A1 Keyway: Factory-spec 27A1 keyway profile ensures proper key-to-plug interface and maintains the integrity of the keying system.
  • Satin Brass Finish: Satin Brass finish coordinates with standard commercial hardware finishes for a consistent, professional appearance.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring proper fit, function, and longevity within compatible lock assemblies.
  • Commercial-Grade Quality: Designed and rated for commercial door hardware applications, meeting the demands of high-use institutional and commercial environments.

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: 487K19 27A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K19?

Corbin Russwin cylinder parts are engineered to exact factory tolerances, ensuring that replacement components like the 487K19 plug integrate seamlessly into existing mortise lock assemblies without compromising security or performance. Specifying a genuine Corbin Russwin part preserves the keying system integrity and the commercial-grade reliability that facility managers and security professionals depend on in demanding, high-traffic environments.

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:
487K19 27A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K19 27A1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 487K19 a complete mortise cylinder or just the plug?
It is the plug only, not a full cylinder. The 487K19 is a 7-pin X Class replacement plug for 1-3/4 inch Corbin Russwin mortise cylinder applications, cut for the 27A1 keyway. If you need a whole cylinder with housing, cam and keys, order a complete mortise cylinder instead. A locksmith rebuilding or re-keying an existing housing is the buyer for this part.
2) Does the 27A1 keyway mean this plug can be keyed into my building's existing Corbin Russwin system?
Only if that system is on 27A1. The keyway profile is what determines whether your existing keys will enter, so a facility keyed on a different Corbin Russwin section needs a plug in that section instead. Where 27A1 is your section, using the factory plug keeps the keying system intact rather than forcing a new key section onto one door.
3) If I need a complete mortise cylinder rather than just a replacement plug, what should I order?
The Corbin Russwin 487K19 is a 7-pin X Class replacement plug for 1-3/4 in. mortise cylinder applications with the 27A1 keyway - it is the keyed plug that goes into an existing cylinder shell, not a finished cylinder assembly. If you need a whole mortise cylinder, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder, and the Detex MC65 is a 1-1/8 in. six-pin mortise cylinder cut to the Schlage C keyway. Those two arrive as complete cylinders; the 487K19 assumes you already have the Corbin Russwin mortise shell in the lock.
4) Can a small-format interchangeable core replace the 487K19 plug?
No - they are different keying platforms. The 487K19 is a 7-pin X Class plug machined to 1-3/4 in. Corbin Russwin mortise cylinder dimensions with the 27A1 keyway, so it is serviced by removing and repinning the plug. An interchangeable core such as the BEST 1CB in the 150 series, or the BEST 1CDF drill-resistant patented 7-pin brass 150 series core, is pulled and swapped with a control key and requires a housing built to accept that core. Choose the core route only if the lock already takes interchangeable cores.
5) My exit device takes a rim cylinder, not a mortise cylinder - is the 487K19 the right part?
No. The 487K19 is a plug for 1-3/4 in. Corbin Russwin mortise cylinders. For rim applications, the Schlage 20-021 is a six-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same six-pin rim cylinder with a horizontal tailpiece cam, each supplied with two keys; the Schlage 20-057 is a six-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation your device requires.
6) Why choose a 7-pin plug over a 6-pin for a commercial mortise cylinder?
Seven pins give more key differs and tighter key control, which is why institutional and multi-tenant work specifies it. The 487K19 is 7-pin X Class. Bear in mind a 7-pin plug belongs in a 7-pin housing; a 6-pin commercial cylinder such as the Detex MC65 (Schlage C keyway, 1-1/8 in., 6-pin) is a different build and not a pin-stack swap.
7) I need a whole cylinder, not a plug. What else does ZenSupply carry for commercial doors?
For a complete unit rather than a rebuild part, look at the Adams Rite 4036 five-pin mortise cylinder (Grade 1, 1/2 in. minimum door thickness) or, for rim applications, the Schlage 20-021 six-pin rim cylinder with vertical tailpiece cam or the 20-022 with horizontal cam. If your facility runs interchangeable cores, the Schlage 20-057 FSIC rim cylinder or a BEST 1CB 150 Series interchangeable core covers that approach.
8) What do I use for a key-in-lever or key-in-knob cylinder instead of the 487K19?
The 487K19 is a mortise cylinder plug and will not serve a key-in-knob or key-in-lever housing. For those, the Kaba Ilco 1539 is a key-in-knob/lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent locks, and the 1599 is a key-in-knob replacement cylinder; the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T series with a six-pin G keyway, keyed different with two cut keys.
9) For an aluminum storefront with an Adams Rite deadlock, is the 487K19 plug what I need?
Not by itself. The 487K19 is a Corbin Russwin 7-pin X Class mortise plug with the 27A1 keyway. Adams Rite storefront deadlocks are usually served by their own parts: 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 MS1847, and the 4026 is a five-pin cylinder pull for use with the 5017 wood door deadlock or deadlatch.
10) I need a residential deadbolt or handleset cylinder - can I use the 487K19?
No. The 487K19 is a commercial mortise cylinder plug in the Corbin Russwin 27A1 keyway. For residential deadbolts and handlesets, the Medeco 1012040 is a six-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a five-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, the 1065244 is a five-pin lazy motion rim type cylinder with an Emtek tailpiece, and the 1075127 is a five-pin rim type lazy motion single cylinder for handlesets and deadbolts.
11) How does the 487K19 compare to a five-pin cylinder if I am standardizing a facility on higher key control?
The 487K19 uses a seven-pin tumbler arrangement in the X Class specification with the 27A1 keyway, which Corbin Russwin builds for key control in commercial mortise applications. Among alternatives, the BEST 1C series standard core is a 5-pin cylinder core and the Adams Rite 4036 mortise cylinder is five-pin, while the BEST 1CDF is a drill-resistant patented 7-pin core. Pin count and patent status are the two variables to settle before you standardize.
12) Is this plug suitable for high-traffic commercial buildings, or is it a residential part?
Commercial only. It is specified for commercial door hardware and gets used in offices, schools, healthcare, government buildings, hotels, multi-tenant residential and industrial facilities. For a house deadbolt or knob, a residential replacement cylinder like the Kaba Ilco 1599 key-in-knob is the relevant type.
13) If the opening does not need to be keyed at all, is there an alternative to ordering a 487K19 plug?
Yes. The 487K19 is a working keyed plug in the 27A1 keyway, so it is only needed where a key must operate the lock. Where the cylinder position is cosmetic or used as a pull only, the BEST 12E series dummy rim cylinder with a 1-5/32 in. diameter fills the opening without keying. That applies to rim prep, so confirm your prep before substituting.
14) Will the 487K19 finish options match cylinders from other brands on the same door?
The 487K19 plug comes in 606 Satin Brass and 626 Satin Chrome, both standard commercial finishes. Among alternatives, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze, which is a darker finish family. If the cylinder face is visible and must match adjacent trim, confirm the finish designation rather than the finish name.
How fast can I get the Corbin Russwin 487K19 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 487K19 27A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K19 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 487K19 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
Why buy the Corbin Russwin 487K19 27A1 626 from ZenSupply?
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