Corbin Russwin 487K15 7-Pin X ...
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, 1-3/8" with 77A2 Keyway in Satin Brass

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Model: 487K15 77A2 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 77A2 Keyway

The Corbin Russwin 487K15 77A2 is a 7-Pin X Class replacement cylinder plug designed for 1-3/8" mortise cylinder applications. Finished in Satin Brass and configured with the 77A2 keyway, this precision-engineered plug is purpose-built for commercial-grade door hardware requiring reliable, manufacturer-matched cylinder components. As a genuine Corbin Russwin cylinder part, it integrates seamlessly with compatible mortise lock assemblies in commercial settings.

Key Features

  • 7-Pin X Class Configuration: Features a 7-pin X Class plug design for enhanced key control and security performance in commercial mortise cylinder applications.
  • 1-3/8" Mortise Format: Sized at 1-3/8" for direct compatibility with standard mortise cylinder housings used in commercial door hardware.
  • 77A2 Keyway: Configured with the 77A2 keyway for precise key compatibility and controlled access management within the Corbin Russwin keying system.
  • Satin Brass Finish: Satin Brass finish provides a professional aesthetic consistent with coordinated commercial hardware installations.
  • Genuine Corbin Russwin Cylinder Part: Engineered as an authentic replacement component, ensuring proper fit and function within compatible Corbin Russwin mortise cylinder assemblies.
  • Commercial-Grade Construction: Manufactured to the exacting tolerances required for commercial door hardware applications where dependable, long-term performance is essential.

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 77A2
  • 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 487K15?

Corbin Russwin cylinder components are engineered to deliver precise, reliable performance in demanding commercial environments. The 487K15 77A2 plug maintains the manufacturing tolerances and keyway integrity that Corbin Russwin mortise cylinder assemblies are built around, making it the appropriate replacement choice for maintaining security and operational consistency in existing installations.

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 77A2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K15 77A2 626 – Frequently Asked Questions

1) What does the 77A2 keyway on this Corbin Russwin plug mean for my keying?
77A2 is the Corbin Russwin keyway the plug is cut for, so your existing keys only operate it if they are 77A2. If the building is keyed on a different Corbin Russwin section, order the plug in that section instead; the keyway is not something you can change in the field. For a masterkeyed system, give your keying schedule to whoever pins the plug, since it ships as a plug and not a keyed-to-code cylinder.
2) I need a complete mortise cylinder, not just the plug - what should I order instead of the Corbin Russwin 487K15?
The 487K15 77A2 is a replacement cylinder plug, the keyed core that drops into an existing mortise cylinder housing, so it does not give you a whole cylinder. For a complete mortise cylinder, the Adams Rite 4036 is a five-pin mortise cylinder in the 4036 Series carrying a Grade 1 rating, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway. Use the 487K15 when the existing Corbin Russwin housing stays in the door and only the plug is being changed.
3) Is a rim cylinder an acceptable substitute for the Corbin Russwin 487K15 mortise plug?
No. The 487K15 77A2 is a 7-pin plug for 1-3/8 inch mortise cylinder format, which threads into a mortise lock body. Rim cylinders mount through the door and drive a surface device with a tailpiece - the Schlage 20-021 is a six-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam. Those serve rim exit devices, not mortise housings.
4) We want to be able to rekey doors ourselves without pulling the cylinder - what is the alternative to the 487K15 plug?
Swapping the 487K15 77A2 plug means working on the Corbin Russwin mortise cylinder itself. If you want field-swappable cores instead, the BEST 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill-resistant patented interchangeable core with 7 pins in brass, and the Schlage 20-057 is a six-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Interchangeable core systems let a facility pull and replace the core with a control key.
5) What is the difference between the Corbin Russwin 487K15 7-pin plug and a 5-pin core like the BEST 1C5?
The 487K15 77A2 is a 7-pin X Class plug keyed to the 77A2 keyway, a restricted Corbin Russwin keyway used for key control. The BEST 1C5 is a standard 5-pin cylinder core from the Standard and Premium Cores line, and the BEST 1CDF uses 7 pins with drill resistance. Pin count changes the number of available key combinations, and the keyway determines which key blanks will enter the plug, so a 5-pin core will not accept a 77A2 key.
6) The lock I am rekeying is a key-in-lever, not a mortise lock - does the Corbin Russwin 487K15 fit it?
No. The 487K15 77A2 is sized for 1-3/8 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 for RU/T Series with a 6-pin G keyway supplied keyed different with two cut keys, the Kaba Ilco 1539 is a universal key-in-knob/lever cylinder, and the Kaba Ilco 1579 is a knob and lever cylinder for Sargent locks.
7) Our storefront uses an Adams Rite MS1847 deadlock - is the Corbin Russwin 487K15 the right cylinder part?
No. The 487K15 77A2 is a 1-3/8 inch mortise cylinder plug in the Corbin Russwin keying system. For an MS1847 deadlock, the Adams Rite 4024 cylinder pull mounts with a trim plate and the Adams Rite 4025 is a five pin tumbler cylinder pull using through-screws, both intended for the MS1847 deadlock/deadlatch. For a wood door, the Adams Rite 4026 five pin tumbler cylinder pull suits the 5017 wood door deadlock/deadlatch.
8) Is this Corbin Russwin plug suitable for a commercial building or is it residential hardware?
It is commercial-grade hardware, intended for mortise cylinder assemblies in offices, schools, healthcare, government buildings, retail, multi-tenant residential and industrial facilities. For a house with a residential key-in-knob or deadbolt cylinder, this is the wrong part; a universal replacement cylinder like the Kaba Ilco 1599 key-in-knob or the 1549 key-in-deadbolt is the type you want there.
9) Why choose a 7-pin X Class plug over a standard 6-pin?
The extra pin chamber and the X Class configuration give tighter key control, which is what you want when a building's keys must not be duplicated casually. A 7-pin plug also will not interchange with a 6-pin cylinder body, so once a facility is on 7-pin X Class you keep buying 7-pin. If you are standardizing a site on a high-security 7-pin platform from scratch, the BEST 1CDF drill-resistant patented 7-pin core is another 7-pin route.
10) Is there a non-keyed option if the opening only needs the cylinder appearance and no key function?
The 487K15 77A2 is a keyed 7-pin X Class plug on the 77A2 keyway, so it always operates by key. Where an opening needs a filler rather than a working cylinder, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the dummy option in the set. Note it is a rim format, so it will not thread into a mortise housing.
11) Can the Corbin Russwin 487K15 plug be finish-matched to trim on adjacent doors?
The 487K15 77A2 plug is offered in 606 Satin Brass and 626 Satin Chrome, which lets the cylinder face match existing commercial trim. Among comparable cylinders, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze with a C keyway, a darker finish for bronze-trimmed openings.
How fast can I get the Corbin Russwin 487K15 77A2 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 77A2 626 come with a warranty?
Absolutely. The Corbin Russwin 487K15 77A2 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 77A2 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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