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 77B1 Keyway

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Model: 487K15 77B1 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 77B1 Keyway in Satin Brass

The Corbin Russwin 487K15 is a precision-engineered 7-Pin X Class plug designed for 1-3/8" mortise cylinder applications. Featuring the 77B1 keyway and a Satin Brass finish, this replacement cylinder plug is built to maintain the security and performance standards of commercial-grade Corbin Russwin locking systems. Ideal for facilities professionals and locksmiths seeking an authentic OEM replacement component.

Key Features

  • Precise Fit: Engineered for 1-3/8" mortise cylinder configurations, ensuring drop-in compatibility with existing Corbin Russwin hardware installations.
  • 7-Pin X Class Security: Features a 7-pin X Class plug design for enhanced key control and elevated security in commercial environments.
  • 77B1 Keyway: Specific 77B1 keyway ensures compatibility with the corresponding Corbin Russwin key system, maintaining key control integrity.
  • Satin Brass Finish: Factory Satin Brass finish matches existing Corbin Russwin hardware for a consistent, professional aesthetic.
  • Authentic OEM Component: Genuine Corbin Russwin cylinder part designed to meet the manufacturer's original performance and security specifications.
  • Commercial-Grade Construction: Manufactured to commercial standards for reliable, long-term performance in high-demand institutional and commercial settings.

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 77B1
  • 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 487K15?

Corbin Russwin cylinder components are manufactured to exacting commercial-grade standards, delivering reliable key control and security performance in demanding institutional environments. The 487K15 plug's 7-Pin X Class configuration and 77B1 keyway specification make it a precise, authenticated replacement that preserves the integrity of your existing Corbin Russwin locking system without compromise.

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 77B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K15 77B1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 487K15 a complete mortise cylinder or just the plug?
It's the plug only, not a housing or a finished cylinder. The 487K15 is a 7-pin X Class cylinder plug sized for 1-3/8 inch mortise cylinder configurations, sold as a replacement part for existing Corbin Russwin cylinders. If you need a whole cylinder to install in a lock, this is not it, you'd want a complete mortise cylinder in your keyway instead.
2) Will the 487K15 plug work with my existing Corbin Russwin keys?
Only if your system is on the 77B1 keyway. The 487K15 is cut for the 77B1 keyway, so it keys into a Corbin Russwin system already using 77B1. A different Corbin Russwin keyway (or another brand's keyway) will not accept it, and the plug cannot be re-keywayed.
3) Does a 7-pin X Class plug drop into a 6-pin Corbin Russwin cylinder?
No. The 487K15 is a 7-pin X Class plug and it matches 7-pin X Class cylinder configurations in the 1-3/8 inch mortise size. Pin stack count and plug chambering have to agree with the shell, so a 6-pin shell needs a 6-pin plug. Confirm the existing cylinder is X Class 7-pin before ordering.
4) If I need a complete mortise cylinder rather than just a replacement plug, what should I order?
The Corbin Russwin 487K15 is a replacement cylinder plug for 1-3/8 inch mortise cylinder applications, so it goes into an existing cylinder shell rather than replacing the whole cylinder. If you need a full mortise cylinder assembly, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security in the 4036 Series, and the Detex MC65 is a 1-1/8 inch six-pin commercial mortise cylinder cut to the Schlage C keyway. Both are complete cylinders, so neither carries the Corbin Russwin 77B1 keyway or the 7-pin X Class plug used for Corbin Russwin key control.
5) My exit device takes a rim cylinder, not a mortise cylinder - what do I order instead of the 487K15?
The Corbin Russwin 487K15 is a plug for 1-3/8 inch mortise cylinder applications and will not serve a rim prep. For rim cylinders, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam supplied with two keys, the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam, and the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation to what your device requires.
6) We want keyed cylinders we can swap without a locksmith - is the Corbin Russwin 487K15 plug the right approach?
The 487K15 is a 7-pin X Class plug, a replacement component that is pinned into a Corbin Russwin mortise cylinder, so rekeying it is bench work. Facilities that want field-swappable keying typically standardize on interchangeable core instead: the BEST 1CB is a Peaks 150 Series interchangeable core cylinder, the BEST 1CDF is a drill resistant patented 7-pin brass interchangeable core in the 150 Series, and the Schlage 20-057-C is a full size interchangeable core in the C keyway with a 643E Aged Bronze finish. Those cores pull with a control key rather than being re-pinned in place.
7) For a narrow stile aluminum storefront door, is the 487K15 the cylinder part I need?
The Corbin Russwin 487K15 is a plug for 1-3/8 inch mortise cylinders in commercial Corbin Russwin locking systems. Narrow stile storefront work usually calls for an Adams Rite cylinder pull or mortise cylinder instead: the 4024 cylinder pull mounts with a trim plate for MS1847 deadlock and deadlatch systems, the 4025 is a five pin tumbler cylinder pull using through-screws for the MS1847, and the 4036 is a Grade 1 mortise cylinder with a 1/2 inch minimum door thickness. For wood doors running a 5017 deadlock or deadlatch, the Adams Rite 4026 five pin tumbler cylinder pull is the matching part.
8) What finishes does the Corbin Russwin 487K15 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder collar and trim already on the door, since a bare plug face is visible at the keyhole. For buildings standardized on chrome or brushed nickel trim, 626 is the match; brass-trimmed openings take 606.
9) Can a locksmith pin this plug up to an existing masterkey system?
Yes, that is what it's for. As a genuine Corbin Russwin 7-pin X Class plug on the 77B1 keyway, it can be pinned to the existing master and change key levels of a 77B1 X Class system, so you keep key control instead of introducing a second keyway to the building. The plug itself arrives as a replacement component, so pinning and key cutting are done at the bench.
10) Is a BEST 1C5 core an equivalent replacement for the Corbin Russwin 487K15 plug?
No. The BEST 1C5 is a standard 5-pin cylinder core from the Standard and Premium Cores line, an interchangeable core that drops into BEST-prepped housings. The Corbin Russwin 487K15 is a 7-pin X Class plug built for 1-3/8 inch Corbin Russwin mortise cylinders with the 77B1 keyway, so it is pinned into a conventional cylinder shell and keys to the Corbin Russwin system. The two are different parts of a lock and different key systems.
11) I need a replacement cylinder for a knob or lever lock, not a mortise cylinder - what are the options?
The Corbin Russwin 487K15 plug serves 1-3/8 inch mortise cylinders. For key-in-knob and key-in-lever bodies, the Kaba Ilco 1539 is a universal key-in-knob and lever cylinder, the 1579 is a knob and lever cylinder made for Sargent locks, and the 1599 is a key-in-knob replacement cylinder. Falcon also offers the A23161-05 G, a key-in-lever cylinder for the RU/T Series with a 6-pin G keyway, keyed different and supplied with two cut keys.
12) Is the 487K15 suitable for a school or hospital keying system, or is it residential hardware?
Commercial. It is built for institutional keying systems, and the X Class 7-pin format is used where key control matters, offices, schools, healthcare, government buildings, retail, warehouses and multi-tenant residential. For facilities standardizing on interchangeable cores instead of fixed plugs, a core-based system such as the BEST 1CDF drill resistant patented 7-pin interchangeable core is the different approach to the same key control problem.
13) Is there a non-keyed alternative if the opening only needs the look of a cylinder?
Yes. The Corbin Russwin 487K15 is a keyed 7-pin X Class plug that carries the 77B1 keyway for live key control. Where an opening needs the appearance of a cylinder but no operation, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter fills a rim prep without keying. Note it is a rim format, so it does not substitute into a 1-3/8 inch mortise cylinder.
14) How does the 487K15 plug differ from the Emtek CY4 cylinder as a replacement part?
The Corbin Russwin 487K15 is a 7-pin X Class plug supplied for 1-3/8 inch Corbin Russwin mortise cylinders in the 77B1 keyway, offered in 606 Satin Brass and 626 Satin Chrome. The Emtek CY4 is a cylinder sold each from Emtek's parts line and is intended for Emtek hardware rather than a Corbin Russwin mortise housing, so it does not carry the 77B1 keyway or the 7-pin X Class plug arrangement.
How fast can I get the Corbin Russwin 487K15 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 487K15 77B1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K15 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 487K15 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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