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 with 77B1 Keyway

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Model: 487K17 77B1 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 77B1 Keyway

The Corbin Russwin 487K17 is a 7-Pin X Class plug designed for 1-1/2" mortise cylinder applications, featuring the 77B1 keyway and a Satin Brass finish. Engineered as a precision replacement part for commercial-grade cylinder assemblies, this plug delivers reliable security performance consistent with Corbin Russwin's cylinder standards. Ideal for facilities managers and locksmiths maintaining Corbin Russwin mortise cylinder hardware in demanding commercial environments.

Key Features

  • 7-Pin X Class Security: Features a 7-pin X Class plug configuration for enhanced key control and pick resistance in commercial applications.
  • 1-1/2" Mortise Format: Sized specifically for 1-1/2" mortise cylinder housings, ensuring precise drop-in compatibility with compatible Corbin Russwin mortise cylinders.
  • 77B1 Keyway: Factory-configured with the 77B1 keyway for seamless integration into existing Corbin Russwin keying systems.
  • Satin Brass Finish: Finished in Satin Brass to coordinate with matching hardware in commercial door assemblies.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring fit, function, and quality consistent with the original assembly.
  • Commercial-Grade Construction: Built to the performance standards expected in commercial mechanical lock applications across a wide range of institutional and professional environments.
  • Replacement Part Convenience: Allows targeted replacement of the cylinder plug without full cylinder assembly replacement, reducing maintenance costs and downtime.

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 77B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K17?

Corbin Russwin cylinder parts are engineered to maintain the integrity of commercial-grade locking systems with exact-fit components manufactured to original specifications. The 487K17 7-Pin X Class plug provides a reliable, professionally sourced replacement solution that preserves the security and key control standards of the original cylinder assembly. For facility managers and security professionals, using genuine Corbin Russwin parts ensures long-term performance in high-demand commercial applications.

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 77B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K17 77B1 626 – Frequently Asked Questions

1) Will the 487K17 plug work in my existing Corbin Russwin keying system?
It comes configured for the 77B1 keyway, so it drops into a Corbin Russwin system already keyed on 77B1. If your building is keyed to a different Corbin Russwin keyway or a different X Class section, this plug will not accept those keys and you need the plug for your keyway.
2) Can I use the 487K17 plug in a rim cylinder or a key-in-knob cylinder?
No. It's cut for 1-1/2 inch mortise cylinder housings only. For rim applications you'd want a rim cylinder such as the Schlage 20-021 (6-pin, vertical tailpiece cam) or 20-022 (horizontal cam); for key-in-knob or lever replacement, something like the Kaba Ilco 1599 key-in-knob cylinder is the right family.
3) If the whole mortise cylinder is worn out and not just the plug, what complete cylinder should be ordered instead of a Corbin Russwin 487K17 plug?
The Corbin Russwin 487K17 is a 7-pin X Class plug for 1-1/2" mortise cylinder housings - a replacement part that reuses the existing shell. When the housing itself is damaged, a complete mortise cylinder is the right call: the Detex MC65 is a mortise cylinder with a Schlage C keyway in 1-1/8" length with 6 pins, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 Series. Both are full assemblies rather than plugs, so they bring their own keyway rather than carrying a 77B1 key section.
4) What is the alternative if a facility wants to rekey doors by pulling a core instead of replacing plugs like the 487K17?
The Corbin Russwin 487K17 plug is changed out at the cylinder, which means disassembling or removing the mortise cylinder to service the opening. An interchangeable-core approach lets the core be pulled with a control key instead: BEST offers the 1CB Peaks 150 Series interchangeable core cylinder and the 1CDF drill resistant patented interchangeable core in 7-pin brass, 150 Series, and Schlage offers the 20-057 6-pin FSIC rim cylinder with convertible tailpiece cam along with the 20-057-C full size interchangeable core in C keyway, 643E Aged Bronze. Moving to cores is a keying-system change, not a drop-in swap for a 77B1 plug.
5) What finishes does the Corbin Russwin 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 visible part of the cylinder.
6) Does a 7-pin plug give better key control than a standard 6-pin?
The X Class 7-pin configuration is built for key control and pick resistance in commercial work, which is why institutions standardize on it. By comparison, most standard commercial cylinders we carry are 5 or 6 pin, such as the Detex MC65 6-pin mortise cylinder in Schlage C keyway. Going to 7-pin X Class means keys stay restricted to your system rather than being cut from blanks off the shelf.
7) I manage a building with interchangeable cores. Is a plug swap the right approach for me?
Not usually. The 487K17 is a fixed mortise plug, so rekeying means pulling the cylinder and changing the plug on the bench. If your facility is set up for fast rekeys, an interchangeable core system is the better fit, for example the BEST 1C Series 5-pin core or the 1CDF drill-resistant patented 7-pin core, both of which pull with a control key. Plug replacement makes sense when you already own Corbin Russwin mortise cylinders and want to keep them.
8) Can a Schlage 20-021 rim cylinder be used in place of a Corbin Russwin 487K17?
No. The Schlage Commercial 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam, and the companion 20-022 is the same rim cylinder with a horizontal tailpiece cam - rim cylinders mount through the door face and drive a tailpiece, typically behind exit device trim. The Corbin Russwin 487K17 is a plug that drops into a 1-1/2" threaded mortise cylinder housing. The two serve different cylinder formats, so one does not stand in for the other.
9) For a key-in-lever or key-in-knob lock, is the Corbin Russwin 487K17 the right cylinder part?
No. The 487K17 is a mortise cylinder plug sized for 1-1/2" mortise 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, keyed different with two cut keys, the Kaba Ilco 1539 is a key-in-knob/lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder.
10) For an aluminum storefront with an Adams Rite MS1847 deadlock, does a Corbin Russwin 487K17 apply?
That opening is usually served by a cylinder pull rather than a mortise plug. The Adams Rite 4024 cylinder pull mounts with a trim plate for MS1847 deadlock systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the MS1847, and the 4026 is a five pin tumbler cylinder pull for the 5017 wood door deadlock. The Corbin Russwin 487K17 is a plug for rebuilding an existing 1-1/2" Corbin Russwin mortise cylinder on a 77B1 system.
11) How does the pin count of the Corbin Russwin 487K17 compare with other cylinder options?
The Corbin Russwin 487K17 is a 7-pin X Class plug, matching the 7-pin count of the BEST 1CDF drill resistant patented interchangeable core in brass. Several alternatives run fewer pins: the Detex MC65 mortise cylinder and the Schlage 20-021 and 20-022 rim cylinders are 6-pin, the Falcon A23161-05 G key-in-lever cylinder is 6-pin in the G keyway, and the Adams Rite 4036 mortise cylinder and BEST 1C5 core are 5-pin. Higher pin counts allow deeper master keying hierarchies; the practical constraint is matching the pinning and key section already in use at the facility.
12) Is this a residential part or is it meant for commercial doors?
Strictly commercial. Corbin Russwin cylinder parts like the 487K17 are specified for offices, schools, healthcare, government buildings, multi-tenant residential and industrial facilities, where a masterkeyed system and restricted key control are the point.
13) Do I need a locksmith to install the 487K17 plug?
Practically, yes. Swapping a plug means removing the mortise cylinder from the lock, disassembling the shell, and pinning the new plug to your key bitting. It is bench work for a locksmith or an in-house maintenance tech with pinning tools, not a drop-in the way a complete cylinder is. The upside is you replace the plug instead of the whole cylinder assembly.
14) Is a BEST 1C5 core or 12E dummy rim cylinder a substitute for the Corbin Russwin 487K17?
Neither one substitutes. The BEST 1C5 is a standard 5-pin cylinder core from the Standard and Premium Cores line, built to seat in a BEST-style core housing rather than a Corbin Russwin mortise shell, and the BEST 12E dummy rim cylinder with 1-5/32" diameter is a non-functioning filler for appearance in a rim prep. The Corbin Russwin 487K17 is a functioning 7-pin X Class plug cut to the 77B1 keyway for 1-1/2" Corbin Russwin mortise cylinders.
How fast can I get the Corbin Russwin 487K17 77B1 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 77B1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K17 77B1 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 77B1 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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