Corbin Russwin 606K79 7-Pin In...
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Corbin Russwin 606K79 7-Pin Individual X Class Cylinder Plug for 3" Mortise with 77A1 Keyway in Satin Brass

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Model: 606K79 77A1 626

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

$97.00
$83.18
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Corbin Russwin 606K79 7-Pin Individual X Class Cylinder Plug for 3" Mortise with 77A1 Keyway in Satin Brass

The Corbin Russwin 606K79 is a 7-Pin Individual X Class replacement cylinder plug engineered specifically for 3" mortise cylinder applications. Featuring the 77A1 keyway and a Satin Brass finish, this precision-machined cylinder part is designed to integrate seamlessly with compatible Corbin Russwin mortise lock hardware in commercial door applications. As a genuine Corbin Russwin cylinder component, it delivers the exacting tolerances and reliable keying performance expected in professional-grade mechanical lock systems.

Key Features

  • 7-Pin Configuration: Individual X Class plug with 7-pin tumbler design provides enhanced key control and security for commercial mortise lock applications.
  • 3" Mortise Compatibility: Precisely engineered for use with 3" mortise cylinders, ensuring accurate fit and reliable operation within compatible Corbin Russwin hardware.
  • 77A1 Keyway: Factory-specified 77A1 keyway maintains keyway integrity and compatibility with corresponding Corbin Russwin key blanks and key systems.
  • Satin Brass Finish: Satin Brass finish provides a refined aesthetic consistent with coordinated door hardware installations in commercial environments.
  • X Class Keying: Individual X Class designation supports flexible keying arrangements suited to master key and restricted key systems in institutional and commercial settings.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring compatibility and performance consistent with original equipment standards.
  • Commercial-Grade Construction: Built to the tolerances demanded by commercial mechanical lock applications, supporting dependable long-term operation in high-use environments.

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: 606K79 77A1
  • 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 606K79?

Corbin Russwin cylinder components are manufactured to the precise tolerances required for reliable operation in demanding commercial environments. The 606K79 Individual X Class plug is a genuine replacement part designed to restore and maintain the performance of compatible 3" mortise cylinder assemblies, making it the dependable choice for locksmiths, facilities managers, and door hardware professionals who require authentic parts for Corbin Russwin mechanical lock systems.

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:
606K79 77A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K79 77A1 626 – Frequently Asked Questions

1) What keyway does the Corbin Russwin 606K79 plug come in, and will my existing keys work?
The plug is cut for the Corbin Russwin 77A1 keyway, model designation 606K79 77A1. Your keys will only enter it if your system is already on 77A1. If your building is keyed to a different Corbin Russwin section, the key blade will not pass the warding, so confirm the keyway stamped on your current cylinders first.
2) I need a replacement core I can swap without a locksmith. Is this plug the right choice?
No. A plug is pinned and fitted by a locksmith inside the cylinder shell, so it is not a tool-free swap. If you want a core you can pull and replace on site, look at an interchangeable core instead, such as the BEST 1CB 150 Series interchangeable core or the BEST 1CDF drill-resistant 7-pin core. For a Schlage-based system, the 20-057 full size interchangeable core rim cylinder does the same job.
3) Is the Corbin Russwin 606K79 a complete mortise cylinder or just the plug?
The 606K79 is a replacement plug only - a 7-pin Individual X Class cylinder plug for 3 inch mortise cylinders with the 77A1 keyway. It goes into an existing Corbin Russwin mortise cylinder shell. If you need a whole mortise cylinder rather than the internal plug, the Adams Rite 4036 is a complete mortise cylinder with five-pin security, and the Detex MC65 is a complete 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway.
4) I need a cylinder for a rim exit device, not a mortise lock - what takes the place of the 606K79 there?
The 606K79 serves 3 inch mortise cylinders, which are threaded into mortise lock bodies rather than rim devices. For a rim application, 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 tailpiece cam; the 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation to what your exit device requires.
5) Will the 606K79 work in a key-in-lever or key-in-knob lockset?
No. The 606K79 is built for 3 inch mortise cylinder assemblies, not knob or lever cylinders. For key-in-lever, the Falcon A23161-05 G is a key in lever cylinder in the RU/T Series 6-pin G keyway supplied keyed different with 2 cut keys. Kaba Ilco offers knob and lever replacements including the 1539 universal key-in-knob/lever cylinder, the 1579 knob and lever cylinder for Sargent, and the 1599 key-in-knob replacement cylinder.
6) Does the 606K79 fit an aluminum storefront deadlock?
It does not - the 606K79 plug is for 3 inch Corbin Russwin mortise cylinders. Narrow stile storefront deadlocks generally take a cylinder pull or a short mortise cylinder: 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/deadlatch. The Adams Rite 4036 mortise cylinder is a Grade 1 unit in the 4036 Series with a 1/2 inch minimum door thickness.
7) Can the 606K79 be keyed into a Schlage C keyway system?
No. The 606K79 uses the Corbin Russwin 77A1 keyway, and a plug is machined to one keyway only. If the building is standardized on Schlage C, use a C keyway product instead - the Detex MC65 mortise cylinder is a 6-pin unit in the Schlage C keyway, and the Schlage 20-057-C is a full size interchangeable core in the C keyway.
8) Does the 606K79 come in satin chrome as well as satin brass?
Two finishes are offered: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder collar and lock trim already on the opening, since the plug face is what shows through.
9) What does Individual X Class keying mean for a master keyed building?
Individual X Class means the plug is supplied to be keyed on its own within a Corbin Russwin system, so it can be pinned into a master key or restricted key hierarchy rather than arriving as a fixed factory keying. For a school or hospital standardizing on one master, that lets a locksmith pin this plug to the existing schedule instead of re-keying the whole opening.
10) Is a 7-pin plug worth it over a 6-pin for a commercial building?
The seventh pin chamber adds another level of key control and more possible combinations, which matters when you are running a restricted master key system across many doors. The 606K79 is a 7-pin plug built for commercial mortise lock work. A 6-pin commercial mortise cylinder like the Detex MC65, which uses a Schlage C keyway, is the simpler route if you are not tied to a Corbin Russwin 77A1 system.
11) Can I use the 606K79 in a rim exit device cylinder?
No. It is a mortise cylinder plug for 3 inch Corbin Russwin mortise cylinders, not a rim cylinder part. Rim devices take a rim cylinder with a tailpiece, for example the Schlage 20-021 with a vertical tailpiece cam or the 20-022 with a horizontal cam.
12) Is a simpler 5-pin plug available instead of the 7-pin 606K79?
The 606K79 is specifically a 7-pin Individual X Class plug, and pin count is not an option on it. If a 5-pin core suits the system better, the BEST 1C5 is a standard 5-pin cylinder core. Note that pin count has to match the keying system the opening belongs to, so confirm what your existing masterkey system was pinned for before changing it.
13) What is the difference between the 606K79 plug and a dummy cylinder?
The 606K79 is a functioning keyed plug - a 7-pin Individual X Class unit in the 77A1 keyway that carries the pin tumblers and operates the lock. A dummy cylinder does no keying work at all and is used to fill a cylinder hole; the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is an example. Order the 606K79 only where the opening actually needs to be keyed.
14) Is the Corbin Russwin 606K79 a genuine OEM part or aftermarket?
It is a genuine Corbin Russwin cylinder component, which is why it holds the tolerances and keying behavior the original mortise cylinder was built around. For institutions that standardize on Corbin Russwin hardware, that keeps the opening on factory parts rather than mixed aftermarket internals.
15) What kind of buildings is this cylinder plug intended for?
Commercial and institutional work: offices, schools, healthcare, government buildings, multi-tenant residential, warehouses and retail. It is a commercial-rated part, not a residential deadbolt cylinder. For residential handleset and deadbolt cylinder swaps, Medeco retrofit cylinders such as the 1075127 rim type single cylinder cover that side.
16) Which finishes does the 606K79 come in, and how does that compare to the finish choices on similar cylinders?
The 606K79 plug is offered in 606 Satin Brass and 626 Satin Chrome. Among comparable cylinder products, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze, so if you are matching a darker trim package that is the finish on record for that core.
How fast can I get the Corbin Russwin 606K79 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 606K79 77A1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K79 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 606K79 77A1 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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