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, 1-1/2" with 77A1 Keyway in Satin Brass

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Model: 487K17 77A1 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 with 77A1 Keyway

The Corbin Russwin 487K17 is a 7-Pin X Class Plug designed for 1-1/2" mortise cylinder applications, offering a precise fit for compatible commercial door hardware. Configured with the 77A1 keyway and finished in Satin Brass, this replacement cylinder plug is engineered for professional locksmith and facility maintenance use in commercial environments. As a genuine Corbin Russwin cylinder part, it delivers the exacting tolerances and material quality that commercial-grade mechanical lock systems demand.

Key Features

  • 7-Pin X Class Configuration: Features a 7-pin X Class plug design for enhanced key control and security in commercial applications.
  • 1-1/2" Mortise Format: Precisely sized at 1-1/2" for direct compatibility with standard mortise cylinder housings used in commercial door hardware.
  • 77A1 Keyway: Incorporates the 77A1 keyway specification, ensuring proper key fitment and compatibility within the Corbin Russwin keying system.
  • Satin Brass Finish: Finished in Satin Brass for a professional appearance that complements a wide range of commercial door hardware finishes.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin component, ensuring drop-in compatibility and consistent performance with existing cylinder hardware.
  • Commercial-Grade Construction: Built to the quality standards expected in commercial mechanical lock applications, suitable for high-use institutional and commercial environments.
  • Replacement Part Application: Designed as a direct replacement plug for compatible Corbin Russwin mortise cylinders, 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: 487K17 77A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K17?

Corbin Russwin cylinder parts are engineered to the precise tolerances required for reliable operation in commercial mechanical lock systems. The 487K17 7-Pin X Class Plug ensures authentic compatibility with existing Corbin Russwin mortise cylinder hardware, eliminating fitment concerns that can arise with non-OEM components. For facility managers and locksmiths maintaining commercial door hardware, genuine Corbin Russwin replacement parts represent the professional standard for dependable, long-term performance.

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 77A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K17 77A1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 487K17 a complete mortise cylinder or just the plug?
It is the plug only, not a full cylinder. The 487K17 is a 7-pin X Class plug sized for 1-1/2 inch mortise cylinder applications, sold as a replacement part for an existing Corbin Russwin mortise cylinder housing. If you need a complete cylinder to install in a lock, a plug will not do the job on its own.
2) What keyway does the Corbin Russwin 487K17 plug use, and can it be keyed into my existing system?
The plug is cut for the 77A1 keyway, so it keys into a Corbin Russwin system already running 77A1 keys. If the building's other cylinders use a different Corbin Russwin keyway, the key will not enter this plug and you need the plug in the matching keyway instead.
3) I manage a building on an interchangeable core system. Is this the right part?
No. The 487K17 is a conventional mortise cylinder plug, so it is rekeyed by pinning the plug, not by pulling a core. On an IC system you swap cores instead, using something like the BEST 1C Series 5-pin core, the BEST 1CB 150 Series interchangeable core, or a Schlage 20-057 full size interchangeable core cylinder.
4) If the whole mortise cylinder needs replacing instead of just the plug, what should be ordered?
The Corbin Russwin 487K17 is a replacement plug for a 1-1/2 inch mortise cylinder, so it only helps if the cylinder housing itself is sound and the plug is being swapped or rekeyed. When the entire mortise cylinder is being replaced, a complete unit is the right item - the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder cut to the Schlage C keyway, and the Adams Rite 4036 is a five-pin mortise cylinder rated Grade 1. Neither of those carries the Corbin Russwin 77A1 keyway, so they suit openings being re-keyed to a different system rather than doors staying on an existing Corbin Russwin key.
5) Is a BEST interchangeable core the same thing as a 487K17 plug?
No. The Corbin Russwin 487K17 is a 7-pin X Class plug that goes inside a 1-1/2 inch mortise cylinder housing and is pinned to the 77A1 keyway. A BEST 1CDF is a drill resistant patented interchangeable core with 7 pins in the 150 series, and the BEST 1C5 is a standard 5-pin core - those drop into figure-eight interchangeable core housings and are pulled with a control key, not disassembled like a mortise cylinder. Pin count alone does not make them interchangeable; the housing format is different.
6) Which finishes does the 487K17 mortise cylinder plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. 626 is the usual match for commercial openings running satin chrome levers and exit trim; 606 matches brass hardware. Since only the plug face shows once it is in the cylinder, pick the one that matches the surrounding cylinder ring.
7) Why choose a 7-pin X Class plug over a standard 6-pin?
The seventh pin and the X Class configuration give a facility tighter key control, which is why it shows up in schools, hospitals, government buildings and multi-tenant properties where unauthorized key duplication is the real risk. A 7-pin plug also has to go into a 7-pin cylinder body; it will not drop into a 6-pin housing.
8) What should I use for an exit device rim application rather than the 487K17?
The Corbin Russwin 487K17 is a mortise format plug at 1-1/2 inch, which will not serve a rim application. Rim cylinders are a separate family: the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same 6-pin rim cylinder with a horizontal cam, while the Schlage 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Cam orientation is what matches the device, so confirm which the exit hardware calls for.
9) Will a 487K17 plug work in a key-in-lever or key-in-knob lockset?
No. The Corbin Russwin 487K17 is built for 1-1/2 inch mortise cylinder housings. Key-in-lever and key-in-knob locks take a different cylinder body - the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T series with a 6-pin G keyway supplied keyed different with two cut keys, and Kaba Ilco offers the 1539 universal key-in-knob and lever cylinder plus the 1579 knob and lever cylinder for Sargent locks. Pick by the lock chassis, not by pin count.
10) I need a deadbolt cylinder, not a mortise plug - what are the options?
The Corbin Russwin 487K17 is a mortise cylinder plug and does not fit deadbolt bodies. For deadbolts, Kaba Ilco lists the 1549 key-in-deadbolt cylinder and the 1599 key-in-knob replacement cylinder, both catalogued for deadbolt function, and Medeco offers retrofit deadbolt cylinders including the 1012040 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts and the 1075127 5-pin rim type lazy motion single cylinder for handlesets and deadbolts.
11) For a narrow stile aluminum door with an Adams Rite deadlock, is the 487K17 the right cylinder part?
No. The Corbin Russwin 487K17 is a plug for 1-1/2 inch mortise cylinders used in commercial mechanical lock hardware. Adams Rite deadlocks in aluminum storefront take their own cylinder pulls: 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 five pin tumbler pull is for the 5017 wood door deadlock and deadlatch.
12) For a facility standardizing on interchangeable cores so cores can be swapped without a locksmith, what is the alternative to the 487K17?
The Corbin Russwin 487K17 is a plug that is pinned and installed inside a mortise cylinder, which is a locksmith operation. A facility that wants field-swappable cores would look at interchangeable core products instead - the BEST Peaks 1CB is a 150 series interchangeable core cylinder and the BEST 1CDF is a patented drill resistant 7-pin interchangeable core in brass, while the Schlage 20-057 is a full size interchangeable core rim cylinder. Those let a core be pulled and replaced rather than the cylinder being taken apart.
13) Is the 487K17 an OEM Corbin Russwin part or an aftermarket copy?
Genuine Corbin Russwin. It is produced as an authentic cylinder component, which is what keeps tolerances right when it goes back into an existing Corbin Russwin mortise cylinder body and avoids the binding you can get with non-OEM plugs.
14) Is this plug suitable for residential doors?
It is classed as commercial hardware, meant for mortise cylinders in offices, schools, healthcare, government, retail, industrial and multi-tenant residential buildings. For a single-family deadbolt or handleset you would be better served by a residential retrofit cylinder such as the Medeco 1075127 rim type lazy motion cylinder for handlesets and deadbolts.
15) If the opening only needs the look of a keyed cylinder with no function, what is used instead?
The Corbin Russwin 487K17 is a working 7-pin X Class plug keyed to 77A1, so it is the wrong part for an inactive leaf or a trim-only position. A dummy unit covers that - the BEST 12E series dummy rim cylinder measures 1-5/32 inch in diameter and provides the appearance without keyed operation. Note it is a rim format, so it suits a rim prep rather than a 1-1/2 inch mortise housing.
16) What finish choices does the 487K17 plug come in, and how does that compare with other cylinder parts?
The Corbin Russwin 487K17 mortise cylinder plug is offered in 606 Satin Brass and 626 Satin Chrome, which covers the two most common commercial trim finishes. Among comparable cylinder parts, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze with a C keyway, so it suits a darker trim package but is an interchangeable core rather than a mortise plug.
How fast can I get the Corbin Russwin 487K17 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 487K17 77A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K17 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 487K17 77A1 626?
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