Corbin Russwin 487K21 7-Pin X ...
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Corbin Russwin 487K21 7-Pin X Class Plug 2" Mortise Cylinder with 67A1 Keyway in Satin Brass

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Model: 487K21 67A1 626

In Stock (leaves warehouse same day if ordered before 3pm ET)

$94.00
$81.02
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Corbin Russwin 487K21 7-Pin X Class Plug 2" Mortise Cylinder with 67A1 Keyway in Satin Brass

The Corbin Russwin 487K21 is a precision-engineered 7-Pin X Class replacement plug designed for 2" mortise cylinder applications. Featuring the 67A1 keyway and a Satin Brass finish, this commercial-grade cylinder plug is a genuine Corbin Russwin cylinder part built to maintain the security and operational integrity of compatible mortise lock hardware. Ideal for facilities managers and locksmiths seeking an exact-match replacement component for Corbin Russwin mortise cylinder systems.

Key Features

  • 7-Pin X Class Security: Features a 7-pin X Class plug configuration for enhanced key control and pick resistance in commercial security applications.
  • 2" Mortise Cylinder Compatibility: Designed specifically for 2" mortise cylinder formats, ensuring precise fit within compatible Corbin Russwin mortise lock hardware.
  • 67A1 Keyway: Incorporates the 67A1 keyway profile for reliable key engagement and compatibility with Corbin Russwin key systems.
  • Satin Brass Finish: Finished in Satin Brass to coordinate with matching hardware finishes in commercial door applications.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring correct tolerances and reliable performance.
  • Commercial-Grade Construction: Engineered for demanding commercial environments requiring consistent, long-term cylinder operation.
  • Direct Replacement: Serves as a drop-in replacement part 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: 487K21 67A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K21?

Corbin Russwin cylinder parts are manufactured to exacting standards, ensuring that replacement components like the 487K21 plug deliver the same precision fit and security performance as original equipment. The 7-pin X Class configuration provides a higher level of key control suited to commercial facilities where security and serviceability are critical priorities.

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:
487K21 67A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K21 67A1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 487K21 a complete mortise cylinder or just the plug?
The 487K21 is the plug only, a 7-pin X Class replacement plug for 2 inch mortise cylinder applications. If your cylinder shell is damaged or you need a whole cylinder rather than the keyed plug, this is not the part. Buy it when you are rebuilding or rekeying an existing Corbin Russwin 2 inch mortise cylinder assembly and need the plug to match your key system.
2) I need a rim cylinder for an exit device, not a mortise plug. What should I be looking at?
The 487K21 is a mortise cylinder plug and will not serve a rim application. For rim devices, look at the Schlage Commercial 20-021 6-pin rim cylinder with a vertical tailpiece cam or the 20-022 with a horizontal cam, matched to what your exit device requires. If your facility runs interchangeable cores, the Schlage 20-057 6-pin FSIC rim cylinder takes a full size core.
3) If the whole mortise cylinder needs replacing instead of just the plug, what should be ordered?
The Corbin Russwin 487K21 is a 7-pin X Class replacement plug for 2 inch mortise cylinders, so it serves an existing cylinder body rather than replacing it. When the complete cylinder is being swapped, a full mortise cylinder such as the Adams Rite 4036, a Grade 1 five-pin mortise cylinder, covers that need, as does the Detex MC65 mortise cylinder, a 1-1/8 inch six-pin cylinder in the Schlage C keyway. Note that those are complete cylinders in their own keyways and will not carry Corbin Russwin 67A1 keys.
4) For a facility that wants keying changes made without disassembling cylinders, what is the alternative to a pinned plug like the 487K21?
The 487K21 is a pinned 7-pin X Class plug, so rekeying means working the cylinder at the bench or on a key machine. An interchangeable core system changes keying by pulling the core with a control key instead. The BEST 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill resistant patented interchangeable core in seven pins and brass in the 150 Series, and the Schlage 20-057 is a six-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Those are separate key systems from Corbin Russwin 67A1.
5) The lock is a key-in-lever or key-in-knob set rather than a mortise lock. Does the 487K21 fit?
No. The 487K21 plug is built for 2 inch mortise cylinder formats used in mortise lock hardware. Key-in-lever and key-in-knob sets take a different cylinder body: the Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the Kaba Ilco 1599 is a key-in-knob replacement cylinder, and the Falcon A23161-05 G is a key-in-lever cylinder with a six-pin G keyway supplied keyed different with two cut keys.
6) Does the 7-pin X Class plug give better key control than a standard 5- or 6-pin cylinder?
The 7-pin X Class configuration is built for restricted key control and pick resistance, which is why it shows up in schools, hospitals, and government buildings where keys have to be accounted for. Compared with common commercial cylinders, a 7-pin plug gives more differs and a longer key bitting than a 5-pin core such as the BEST 1C Series standard 5-pin core, or a 6-pin cylinder like the Detex MC65 in Schlage C keyway.
7) Can I use this plug in a key-in-lever or knob lock instead of a mortise lock?
No. It is dimensioned for 2 inch mortise cylinder formats, not for knob or lever cylinder pockets. For key-in-knob and lever replacements, the Kaba Ilco 1539 Series universal knob/lever cylinder or the Falcon A23161-05 G 6-pin cylinder for RU/T series levers are the right category. Sargent knob and lever prep is covered by the Kaba Ilco 1579.
8) Does the 487K21 come keyed, or does my locksmith have to pin it?
It is the plug component of a Corbin Russwin cylinder, so plan on a locksmith pinning it to your key system. That is the point of buying the plug rather than a full cylinder: it lets you set it to your existing 67A1 bitting during a rekey without replacing the cylinder body. If you would rather drop in a factory core and skip pinning, an interchangeable core product such as the BEST 1CB 150 Series core is the different approach.
9) What is the difference between the 487K21 plug and an interchangeable core system?
With the 487K21 you pin the plug to your bitting and it stays in the cylinder; changing a key means taking the cylinder apart. An interchangeable core system lets a manager pull a core with a control key and swap it in seconds, which is how the BEST 1CB 150 Series and the drill-resistant BEST 1CDF 7-pin core work. If your buildings see frequent tenant turnover, the core approach saves labor; if the Corbin Russwin mortise cylinders are already installed and keyed, the plug keeps you on that system.
10) Can the 487K21 be used on an Adams Rite MS1847 narrow stile deadlock?
The 487K21 is a plug for 2 inch Corbin Russwin mortise cylinders and is not a narrow stile cylinder pull assembly. Openings using the Adams Rite MS1847 deadlock or deadlatch are served by the Adams Rite 4024 cylinder pull with trim plate mounting, or the 4025 five pin tumbler cylinder pull with through-screws. For a wood door, the Adams Rite 4026 five pin tumbler cylinder pull is designed for the 5017 wood door deadlock or deadlatch.
11) Is a rim cylinder an acceptable substitute for the 487K21 mortise plug?
No. The 487K21 is a plug for a 2 inch mortise cylinder, which threads into a mortise lock case. Rim cylinders mount through the door behind a rim exit device and use a tailpiece cam instead: 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 are the parts to specify for rim device openings, not for a mortise cylinder rebuild.
12) What is a simpler five-pin option if seven-pin X Class key control is more than the opening needs?
The 487K21 uses a 7-pin X Class plug configuration aimed at higher key control and pick resistance. Where a standard five-pin cylinder is sufficient, the BEST 1C5 is a standard five-pin cylinder core and the Adams Rite 4036 is a five-pin mortise cylinder rated Grade 1. Both operate on their own key systems rather than the Corbin Russwin 67A1 keyway.
13) For a deadbolt cylinder replacement, is the Corbin Russwin 487K21 the right part?
The 487K21 is a mortise cylinder plug for commercial mortise lock hardware, not a deadbolt cylinder. Deadbolt work is served by parts such as the Kaba Ilco 1549 key-in-deadbolt cylinder and the Kaba Ilco 1579 knob and lever cylinder for Sargent, both listed with a deadbolt function, or the Medeco 1012040, a six-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts.
14) What should be used for a residential handleset or interconnected lock instead of the 487K21?
The 487K21 is a commercial part for Corbin Russwin mortise cylinder assemblies. Handleset and interconnected lock retrofits call for a different cylinder style: the Medeco 1065140 is a five-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, the Medeco 1065244 is a five-pin lazy motion rim type cylinder supplied with an Emtek tailpiece, and the Medeco 1075127 is a five-pin rim type lazy motion single cylinder for handlesets and deadbolts.
15) Is the Corbin Russwin 487K21 suitable for apartment and commercial door hardware, or is it a residential part?
It is a commercial door hardware part, intended for mortise lock cylinders in office buildings, schools, healthcare, government, multi-tenant residential, retail, and warehouse facilities. Property managers standardizing a building on one Corbin Russwin key section use plugs like this to keep every door on the same system during rekeys.
16) Which finishes does the Corbin Russwin 487K21 come in, and what if the rest of the openings are bronze?
The 487K21 plug is offered in 606 Satin Brass and 626 Satin Chrome to coordinate with commercial door hardware finishes. If the surrounding hardware is bronze, that finish shows up in the cylinder category on the Schlage 20-057-C full size interchangeable core cylinder, which is supplied in the C keyway and 643E Aged Bronze; note it is an interchangeable core on a Schlage key system, not a Corbin Russwin 67A1 plug.
17) Is there a non-keyed filler part comparable to the 487K21 for an opening that does not need to lock?
The 487K21 is a functioning 7-pin keyed plug for mortise cylinders. Where an opening needs the look of a cylinder without key operation, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter fills a rim prep instead, and the Emtek CY4 cylinder is sold individually as a parts item. Neither uses the Corbin Russwin 67A1 keyway.
How fast can I get the Corbin Russwin 487K21 67A1 626 delivered?
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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 487K21 67A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K21 67A1 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 487K21 67A1 626?
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