Corbin Russwin 606K79 7-Pin In...
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$97.00
$83.18
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Corbin Russwin 606K79 7-Pin Individual X Class Cylinder Plug for 3" Mortise with 77B1 Keyway

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Model: 606K79 77B1 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 77B1 Keyway

The Corbin Russwin 606K79 is a 7-Pin Individual X Class replacement cylinder plug engineered specifically for 3" mortise lock applications. Designed with the 77B1 keyway and finished in Satin Brass, this commercial-grade cylinder plug is a precision Corbin Russwin cylinder part intended for use in compatible mortise lock cylinders. As a genuine replacement component, it delivers reliable keying performance in demanding commercial door hardware installations.

Key Features

  • 7-Pin Configuration: Features a 7-pin tumbler arrangement in the X Class specification for enhanced keying security and compatibility within Corbin Russwin keying systems.
  • 3" Mortise Compatibility: Engineered specifically for use with 3" mortise lock cylinders, ensuring precise fit and reliable operation in compatible mortise hardware.
  • 77B1 Keyway: Manufactured to the 77B1 keyway specification, maintaining keyway-controlled access and compatibility with corresponding Corbin Russwin key blanks and key systems.
  • Satin Brass Finish: Finished in Satin Brass for a professional appearance that complements a wide range of commercial door hardware finishes.
  • X Class Plug: Individual X Class designation supports organized master key system integration within Corbin Russwin keying hierarchies.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring quality, dimensional accuracy, and compatibility with the 606K79 product model.
  • Commercial-Grade Replacement Part: Designed for commercial applications as a direct replacement plug, supporting efficient rekeying and lock maintenance without full cylinder replacement.

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 77B1
  • 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 606K79?

Corbin Russwin cylinder parts are manufactured to exacting commercial standards, delivering the dimensional precision and material quality required for reliable mortise lock performance. The 606K79 Individual X Class plug supports professional rekeying operations, making it an essential component for locksmiths, facility managers, and security professionals maintaining Corbin Russwin mortise hardware in high-demand commercial environments.

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 77B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K79 77B1 626 – Frequently Asked Questions

1) Can I rekey a Corbin Russwin mortise lock without buying a whole new cylinder?
Yes, that's exactly what this plug is for. Swapping the 606K79 plug into the existing 3 inch mortise cylinder lets you rekey the opening without replacing the full cylinder, which is the usual approach when a facility is re-keying doors in bulk or has lost key control on a suite.
2) I have a Schlage or BEST keyway on my other doors. Can I use this plug to key them alike?
No. The 606K79 is a 77B1 Corbin Russwin keyway plug and cannot be keyed to a Schlage or BEST system. For Schlage C keyway openings, a cylinder like the Schlage 20-057-C full size interchangeable core is the right direction, and for BEST small format interchangeable core work the BEST 1C Series 5-pin core or 1CDF 7-pin drill resistant core fits that system. Keying alike across brands means standardizing the keyway, not swapping plugs.
3) Is the Corbin Russwin 606K79 plug a complete mortise cylinder, or do I still need a cylinder housing?
The 606K79 is a replacement cylinder plug only - the 7-pin X Class plug with the 77B1 keyway that drops into a compatible 3 inch Corbin Russwin mortise cylinder, sold for rekeying and maintenance rather than as a finished cylinder. If you need a complete mortise cylinder assembly instead, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security, and the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway. Those two go into the lock body as complete units; the 606K79 goes inside a cylinder.
4) We want to move a Corbin Russwin opening to interchangeable core instead of rekeying plugs - what do we buy?
The 606K79 keeps the opening on a conventional keyed plug, rekeyed by pulling and repinning the plug itself. If you would rather swap cores by hand, BEST interchangeable core products cover that path: the 1CB Peaks 150 Series interchangeable core cylinder, the 1CDF drill resistant patented interchangeable core in 7-pin brass, and the 1C Series standard 5-pin core. Schlage's 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam if the opening is rim rather than mortise. Note that these move you off the Corbin Russwin 77B1 keyway and key system.
5) My opening is a rim exit device, not a mortise lock - what should I order instead of the 606K79?
The 606K79 plug is built for 3 inch mortise cylinder bodies, so it will not serve a rim device. For rim applications, Schlage's 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam, both supplied with two keys; the 20-057 is the 6-pin full size interchangeable core version with a convertible cam. Confirm which cam orientation your exit device requires before ordering.
6) I have an aluminum storefront with an Adams Rite deadlock - does the 606K79 fit?
It does not. The 606K79 plug is made for 3 inch Corbin Russwin mortise cylinder bodies used in commercial mortise locks. For Adams Rite storefront hardware, the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws are both intended for the MS1847 deadlock/deadlatch, and the 4026 five pin tumbler cylinder pull is for the 5017 wood door deadlock/deadlatch. The 4036 is the Grade 1 mortise cylinder for those systems.
7) Does the 77B1 X Class plug fit into a master key system?
It does. The Individual X Class designation is built for master key hierarchies within Corbin Russwin keying systems, and the 7-pin chamber count is what gives you the extra levels of masterkeying. Your keying schedule has to be written on the 77B1 keyway for the plug to operate under it.
8) Will this mortise plug work in a rim cylinder or a key-in-lever cylinder?
No. This plug is made for 3 inch mortise cylinders only. Rim applications take a rim cylinder such as the Schlage 20-021 with a vertical tailpiece cam or the 20-022 with a horizontal cam, and key-in-lever work takes a cylinder like the Falcon A23161-05 G 6-pin or the Kaba Ilco 1539 universal key-in-knob/lever cylinder.
9) Will a Kaba Ilco replacement cylinder work in place of the Corbin Russwin 606K79?
No - the Kaba Ilco 1539, 1549, 1579 and 1599 are key-in-knob, key-in-lever and key-in-deadbolt replacement cylinders, a different cylinder format from a mortise cylinder plug. The 1579 is specifically the knob and lever cylinder for Sargent hardware. The 606K79 is a 7-pin X Class plug for 3 inch Corbin Russwin mortise cylinders on the 77B1 keyway, so a knob or deadbolt cylinder is not an interchange for it.
10) What is the equivalent part for a key-in-lever cylinder rather than a mortise plug?
For key-in-lever openings, the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T Series with a 6-pin G keyway, keyed different and supplied with two cut keys. The Corbin Russwin 606K79 is the mortise side of that job - a 7-pin X Class plug for 3 inch mortise cylinders on the 77B1 keyway, offered in 606 Satin Brass and 626 Satin Chrome. Different lock formats, so match to what is in the door.
11) Is there a higher-security alternative if we are worried about drilling attacks on our cylinders?
The Corbin Russwin 606K79 is a standard 7-pin X Class plug supporting master key system integration on the 77B1 keyway. If drill resistance and patented key control are the priority, the BEST 1CDF is a drill resistant preferred patented interchangeable core in 7-pin brass, 150 Series. Medeco cylinders in the comparable range, such as the 1012040 6-pin lazy motion rim cylinder, are another high-security path, though they are rim format rather than mortise plugs.
12) Is the Corbin Russwin 606K79 plug rated for commercial door traffic?
It's a commercial-grade part, catalogued for commercial rather than residential use, and typical applications include offices, schools, healthcare, government buildings, retail, multi-tenant residential, and warehouses.
13) Do keys come with the 606K79 cylinder plug?
The 606K79 is sold as the plug itself, a genuine Corbin Russwin cylinder part. Plan on cutting 77B1 blanks to your own keying schedule. Some comparable cylinders ship with keys, for example the Schlage 20-021 and 20-022 rim cylinders are supplied with two keys, but that isn't the case with an individual plug.
14) We need a non-keyed filler for an opening - is the 606K79 the wrong part?
Yes, the 606K79 is a functioning keyed plug pinned to the 77B1 keyway for active openings. If you want a cylinder that fills the prep without keyed operation, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the non-keyed option, though it is rim format rather than a mortise plug.
How fast can I get the Corbin Russwin 606K79 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 606K79 77B1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K79 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 606K79 77B1 626?
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