Corbin Russwin 606K79 7-Pin In...
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Corbin Russwin 606K79 7-Pin Individual X Class Plug for 3" Mortise Cylinder, 57A1 Keyway, Satin Brass

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Model: 606K79 57A1 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 Plug for 3" Mortise Cylinder with 57A1 Keyway in Satin Brass

The Corbin Russwin 606K79 is a 7-Pin Individual X Class replacement plug engineered specifically for 3" mortise cylinders. Featuring the 57A1 keyway and a Satin Brass finish, this precision-manufactured cylinder component is designed for commercial-grade mechanical lock applications where exact compatibility and security-class keying are essential. As a genuine Corbin Russwin cylinder part, it integrates seamlessly into compatible mortise lock assemblies requiring an X Class security plug.

Key Features

  • 7-Pin Configuration: Individual X Class plug with 7 pins for enhanced key control and security in commercial mortise cylinder applications.
  • Mortise Cylinder Compatibility: Specifically designed for 3" mortise cylinders, ensuring precise fit and reliable operation in compatible Corbin Russwin assemblies.
  • 57A1 Keyway: Factory-configured with the 57A1 keyway for controlled key access and system compatibility within Corbin Russwin keying systems.
  • X Class Security: X Class plug designation provides a defined security level for master keying and key control programs in professional commercial installations.
  • Satin Brass Finish: Finished in Satin Brass to coordinate with compatible hardware for a consistent, professional appearance.
  • Genuine Corbin Russwin Component: Manufactured as an authentic Corbin Russwin cylinder part, ensuring quality, dimensional accuracy, and full compatibility with original equipment.
  • Commercial-Grade Construction: Built to the standards of Corbin Russwin's commercial mechanical lock product line for dependable, long-term performance in demanding 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 57A1
  • 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 606K79?

Corbin Russwin cylinder parts are engineered to exacting tolerances for reliable integration with original equipment mortise lock assemblies. The 606K79 X Class plug delivers the precision keying and security-class performance that commercial facility managers and security professionals depend on for controlled access applications. Choosing a genuine Corbin Russwin replacement component ensures dimensional accuracy, keyway integrity, and long-term mechanical reliability.

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 57A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K79 57A1 626 – Frequently Asked Questions

1) Will the 606K79 plug work in my existing Corbin Russwin keying system?
Only if your system runs the 57A1 keyway. The plug ships factory-configured with 57A1, so it keys into Corbin Russwin systems built on that keyway and X Class key control. A different Corbin Russwin keyway means a different plug, not this one.
2) Does the 7-pin X Class plug fit a 1-1/8 inch mortise cylinder?
No. The 606K79 plug is built for 3 inch mortise cylinders. A short 1-1/8 inch cylinder, like the Detex MC65, uses a different plug length entirely, so this part won't drop into it.
3) I need a whole mortise cylinder, not just a plug - what should I order instead of the Corbin Russwin 606K79?
The Corbin Russwin 606K79 is a 7-pin X Class replacement plug for 3 inch mortise cylinders, so it is only the plug assembly, not a complete cylinder. If you need a complete mortise cylinder, the Detex MC65 is a mortise cylinder with a Schlage C keyway in a 1-1/8 inch 6-pin configuration, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 series. Both are ordered as full cylinders rather than internal components.
4) Can I use a Schlage 20-057 core in place of the Corbin Russwin 606K79 plug?
No. The Schlage 20-057 is a 6-pin full size interchangeable core with a convertible tailpiece cam, and the 20-057-C is an FSIC core in the C keyway with a 643E Aged Bronze finish. Those are interchangeable cores that drop into FSIC housings. The Corbin Russwin 606K79 is a 7-pin Individual X Class plug built for 3 inch Corbin Russwin mortise cylinders in the 57A1 keyway, so it serves a different housing and keying system.
5) My opening uses a rim exit device, not a mortise lock - is the 606K79 the right part?
No. The Corbin Russwin 606K79 is made for 3 inch mortise cylinders. For rim applications, Schlage lists the 20-021 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 6-pin rim cylinder with a horizontal tailpiece cam, both supplied with 2 keys. BEST also lists the 12E Series dummy rim cylinder with a 1-5/32 inch diameter for openings that need the look without keyed function.
6) Why would a facility specify an X Class plug instead of a standard one?
X Class is a key control designation. It gives a defined security level for master keying programs, so a school district or hospital running restricted keys can keep the plug inside their controlled system when a cylinder gets rebuilt. Standard plugs don't carry that control. The 7-pin configuration also adds master keying depth over a 5-pin core.
7) I want interchangeable cores so I can rekey without a locksmith. Is this plug the right choice?
No. The 606K79 is a keyed plug for a conventional 3 inch mortise cylinder, so rekeying means pinning the plug. If the goal is swapping a core in the field, go with an interchangeable core product: BEST 1CB Peaks 150 Series, the BEST 1CDF drill-resistant 7-pin core, or a Schlage 20-057 full size interchangeable core.
8) Can I use the 606K79 in a rim cylinder or an exit device cylinder?
No. It is specific to 3 inch mortise cylinders. Rim applications, including most exit device trim, take a rim cylinder with a tailpiece cam, such as the Schlage 20-021 with a vertical tailpiece or the 20-022 with a horizontal tailpiece.
9) What is the closest interchangeable core option if my facility wants cores that can be swapped without a locksmith?
The Corbin Russwin 606K79 is a 7-pin X Class plug installed into a 3 inch mortise cylinder. For a swap-in-the-field core program, BEST offers interchangeable cores: the 1CB is a 150 Series interchangeable core cylinder, and the 1CDF is a drill resistant patented interchangeable core in 7-pin brass, also 150 Series. The BEST 1C5 is a standard 5-pin cylinder core. These are core-based systems rather than pinned plugs for a Corbin Russwin mortise housing.
10) What do I order if the cylinder I am replacing is in a key-in-lever or key-in-knob lockset rather than a mortise lock?
The Corbin Russwin 606K79 is a mortise cylinder plug and will not serve a key-in-lever lockset. Kaba Ilco lists the 1539 Series key-in-knob and lever universal cylinder and the 1599 key-in-knob replacement cylinder, plus the 1579 knob and lever cylinder for Sargent locks. Falcon offers the A23161-05 G key-in-lever cylinder, an RU/T Series 6-pin G keyway supplied keyed different with 2 cut keys.
11) Is there an equivalent part for a deadbolt rather than a mortise lock?
The Corbin Russwin 606K79 is specific to 3 inch mortise cylinders. For deadbolt cylinders, Kaba Ilco lists the 1549 Series key-in-deadbolt cylinder with a deadbolt function. Medeco lists the 1012040 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1075127 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, and the 1065140 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder.
12) We are replacing cylinders on aluminum storefront doors with Adams Rite deadlocks - does the Corbin Russwin 606K79 apply?
The 606K79 is a plug for 3 inch Corbin Russwin mortise cylinders and does not address Adams Rite storefront hardware directly. For MS1847 deadlock and deadlatch systems, Adams Rite lists the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws. For wood door openings using the Adams Rite 5017 deadlock or deadlatch, the 4026 five pin tumbler cylinder pull is the matching part.
13) How does pin count on the Corbin Russwin 606K79 compare to other cylinder options when I am setting up a master key system?
The Corbin Russwin 606K79 is a 7-pin Individual X Class plug in the 57A1 keyway, giving seven chambers for master keying within Corbin Russwin keying systems. Among other cylinder options, the BEST 1CDF is also a 7-pin core, the Detex MC65 and Schlage 20-021 and 20-022 rim cylinders are 6-pin, and the BEST 1C5 core and Adams Rite 4036 mortise cylinder are 5-pin. Pin count must match the system your keys are cut to.
14) Is this a commercial part or is it for residential locks?
Commercial. The 606K79 is part of Corbin Russwin's commercial mechanical lock line and is sold as a replacement part for mortise cylinder assemblies in office buildings, schools, healthcare, government and multi-tenant properties. For residential handleset and deadbolt cylinders you'd be looking at something like the Medeco 1075127 rim-type lazy motion cylinder instead.
15) Which finishes does the Corbin Russwin 606K79 plug come in, and do any comparable cylinders offer a darker finish?
The Corbin Russwin 606K79 7-pin X Class plug is offered in 606 Satin Brass and 626 Satin Chrome. If a darker finish is required for the opening, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze, though it is an FSIC core in the C keyway rather than a mortise cylinder plug.
How fast can I get the Corbin Russwin 606K79 57A1 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 57A1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K79 57A1 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 57A1 626?
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