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 77A1 Keyway in Satin Brass

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Model: 487K15 77A1 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 77A1 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 77A1 keyway and a Satin Brass finish, this precision-engineered cylinder plug is purpose-built for commercial-grade door hardware systems. It is designed to integrate seamlessly with compatible Corbin Russwin mortise cylinder assemblies, making it an ideal replacement part for maintaining high-security locking functions in demanding commercial environments.

Key Features

  • 7-Pin X Class Security: Features a 7-pin X Class configuration, delivering enhanced key control and pick resistance for commercial security applications.
  • 1-3/8" Mortise Cylinder Format: Precisely dimensioned at 1-3/8" for direct compatibility with standard mortise cylinder housings in commercial door hardware.
  • 77A1 Keyway: Configured with the 77A1 keyway to ensure proper key blade engagement and compatibility with corresponding Corbin Russwin key blanks and keyways.
  • Satin Brass Finish: Factory-applied Satin Brass finish provides a professional aesthetic and corrosion resistance appropriate for commercial interior applications.
  • Genuine Corbin Russwin Component: Manufactured as an authentic Corbin Russwin cylinder part, ensuring fit, form, and function consistent with original equipment specifications.
  • Commercial-Grade Construction: Engineered for use in commercial mechanical lock systems, supporting reliable and repeatable cylinder operation in high-traffic environments.
  • Replacement Part Convenience: Designed as a drop-in replacement plug for compatible 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 77A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K15?

Corbin Russwin cylinder components are engineered to deliver consistent, professional-grade performance in commercial mechanical lock systems. The 487K15 plug's 7-pin X Class architecture provides a high level of key control and security integrity, making it a trusted choice for facilities managers and locksmiths who require genuine, specification-matched replacement parts. Engineered for demanding commercial applications where dependable, repeatable cylinder performance is essential.

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 77A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K15 77A1 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 assembly. The 487K15 is a 7-pin X Class replacement plug for 1-3/8 inch mortise cylinder applications, sold as a replacement part for compatible Corbin Russwin mortise cylinder housings. If you need a complete cylinder with housing, cam and keys, a plug is the wrong part. Buy this when the housing is already in the door and you are rebuilding or rekeying the core.
2) What does the 77A1 keyway mean for keying this plug into my existing system?
77A1 is the keyway the plug is cut for, so it accepts Corbin Russwin key blanks in that keyway and nothing else. If your building is masterkeyed on a different Corbin Russwin keyway, this plug will not take your existing keys. Match the keyway on the cylinders already in the doors before ordering, because a plug cannot be converted to another keyway.
3) If I need a complete mortise cylinder rather than just a replacement plug, what should I order?
The Corbin Russwin 487K15 is a replacement plug for 1-3/8 inch mortise cylinder applications, so it goes into an existing cylinder housing. If the whole cylinder has to be replaced, the Detex MC65 is a complete mortise cylinder, 1-1/8 inch, 6-pin, in the Schlage C keyway, and the Adams Rite 4036 is a five-pin mortise cylinder rated Grade 1. Both are full cylinders, not plugs, and neither uses the Corbin Russwin 77A1 keyway.
4) Can I use the 487K15 plug in a rim cylinder application?
No. The 487K15 is dimensioned at 1-3/8 inch for mortise cylinder housings. 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; the BEST 12E Series dummy rim cylinder has a 1-5/32 inch diameter. Mortise and rim cylinders use different bodies and cam arrangements and are not interchangeable.
5) How does the 487K15 plug differ from an interchangeable core if I want to rekey without disassembly?
The 487K15 is a 7-pin X Class plug that is swapped into a compatible Corbin Russwin mortise cylinder assembly as a replacement part. An interchangeable core system pulls the core with a control key instead: the BEST 1CB Peaks 150 Series and the BEST 1CDF drill resistant patented 7-pin brass 150 Series are interchangeable core cylinders, and the BEST 1C Series 5-pin core is a standard core. Schlage's 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam and the 20-057-C is a full size interchangeable core in the C keyway.
6) We have aluminum storefront doors with Adams Rite deadlocks. Will the Corbin Russwin 487K15 work there?
The 487K15 is a 7-pin plug for Corbin Russwin 1-3/8 inch mortise cylinder assemblies and is not an Adams Rite storefront part. For Adams Rite MS1847 deadlock and deadlatch openings, the 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws; the 4026 five pin tumbler cylinder pull is for the 5017 wood door deadlock and deadlatch.
7) What does 7-pin X Class give me over a standard 5- or 6-pin cylinder?
Seven pin chambers instead of five or six, in Corbin Russwin's X Class configuration, which raises key control and pick resistance. Practically, it means more usable key changes for a masterkey system and a blank that is not freely available at a hardware counter. By comparison, cores like the BEST 1C5 are 5-pin and the Detex MC65 mortise cylinder is 6-pin.
8) Is this the right part for standardizing cylinders across a facility?
It works for facilities already standardized on Corbin Russwin 77A1 with 1-3/8 inch mortise cylinders, which covers office buildings, schools, healthcare, retail, government and multi-tenant residential. If you are starting a standardization program from scratch, an interchangeable core platform is easier to service: BEST 1CB 150 Series or the 1CDF drill-resistant 7-pin core let maintenance swap cores without disassembling cylinders.
9) For a deadbolt cylinder, is the 487K15 the right part?
No. The 487K15 is a mortise cylinder plug rather than a deadbolt cylinder. The Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, and Medeco offers deadbolt-oriented 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.
10) I need a cylinder for a key-in-lever or key-in-knob lock, not a mortise plug. What are the options?
The 487K15 plug fits 1-3/8 inch mortise cylinder housings and will not serve a key-in-lever lock. For those, 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; the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, and the 1599 is a key-in-knob replacement cylinder. The Kaba Ilco 1579 is a knob and lever cylinder for Sargent locks.
11) Does the 7-pin count on the 487K15 match the other cylinders we stock?
The 487K15 uses a 7-pin X Class configuration. Among comparable cylinders, the BEST 1CDF is also 7-pin brass in the 150 Series, while the Detex MC65, Falcon A23161-05 G, Schlage 20-021, 20-022 and 20-057 and the Medeco 1012040 are 6-pin, and the BEST 1C5 core, Adams Rite 4036 and Medeco 1065140, 1065244 and 1075127 are 5-pin. Pin count follows the keying system, so a 7-pin plug is not a drop-in for a 5- or 6-pin cylinder.
12) Is there a Corbin Russwin 487K15 equivalent for an Emtek handleset?
No, the 487K15 is a Corbin Russwin mortise cylinder plug in the 77A1 keyway and does not serve Emtek trim. For Emtek, the Emtek CY4 cylinder is sold each, the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder supplied with an Emtek tailpiece, and the Medeco 1065140 is a 5-pin retrofit cylinder listed for Emtek handleset and deadbolt outside cylinder use.
How fast can I get the Corbin Russwin 487K15 77A1 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 77A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K15 77A1 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 77A1 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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