Corbin Russwin 606K76 7-Pin In...
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$94.00
$81.02
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Corbin Russwin 606K76 7-Pin Individual X Class Cylinder Plug for 2-1/4" Mortise with 57A1 Keyway

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Model: 606K76 57A1 626

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

$94.00
$81.02
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Corbin Russwin 606K76 7-Pin Individual X Class Cylinder Plug for 2-1/4" Mortise with 57A1 Keyway

The Corbin Russwin 606K76 is a 7-Pin Individual X Class Cylinder Plug engineered specifically for 2-1/4" mortise cylinders and features the 57A1 keyway, finished in Satin Brass. This replacement plug is a genuine Corbin Russwin cylinder component designed to maintain the security and performance standards of compatible Corbin Russwin mortise lock systems. Built for commercial applications, this precision-machined plug supports professional rekeying and cylinder service on Corbin Russwin hardware installations.

Key Features

  • 7-Pin X Class Configuration: Individual X Class plug with 7-pin tumbler design provides enhanced key control and security in compatible Corbin Russwin mortise cylinders.
  • Mortise Cylinder Compatibility: Designed specifically for 2-1/4" mortise cylinder applications, ensuring a precise, reliable fit in compatible Corbin Russwin mortise lock hardware.
  • 57A1 Keyway: Features the 57A1 keyway profile for use with corresponding Corbin Russwin key blanks and key systems, maintaining keyway-specific key control.
  • Satin Brass Finish: Satin Brass finish coordinates with matching Corbin Russwin hardware for a consistent, professional appearance in commercial installations.
  • Genuine Corbin Russwin Cylinder Part: An authentic Corbin Russwin replacement component, engineered to OEM tolerances for dependable performance and longevity.
  • Commercial-Grade Replacement Part: Designed for commercial environments where cylinder serviceability and security are critical, supporting efficient on-site rekeying and maintenance.

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: 606K76 57A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 606K76?

Corbin Russwin cylinder components are manufactured to exacting OEM tolerances, ensuring that replacement parts like the 606K76 plug deliver the same precision fit and security performance as original equipment. Engineered for demanding commercial applications, this 7-pin X Class plug supports professional-grade cylinder maintenance and rekeying with the reliability that Corbin Russwin hardware is known for.

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:
606K76 57A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K76 57A1 626 – Frequently Asked Questions

1) Will the 606K76 plug work in a 1-1/8 inch mortise cylinder?
No. The 606K76 plug is built for 2-1/4 inch mortise cylinders. Mortise cylinder lengths are not interchangeable, so a 1-1/8 inch shell needs a plug cut for that length. For a short 1-1/8 inch mortise cylinder in a different keyway, the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in Schlage C.
2) What keyway does the Corbin Russwin 606K76 plug use, and can I key it into my existing system?
The plug is cut for the 57A1 keyway. It only accepts Corbin Russwin key blanks in 57A1, so it will key into an existing Corbin Russwin 57A1 master key system. If the building is keyed to a different Corbin Russwin section, the plug has to match that section instead.
3) I need a complete mortise cylinder, not just the plug - what should I order instead of the Corbin Russwin 606K76?
The 606K76 is a replacement plug only, a cylinder component for service and rekeying of 2-1/4 inch Corbin Russwin mortise cylinders. If the opening needs a whole mortise cylinder, the Detex MC65 is a complete 1-1/8 inch 6-pin mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder from the 4036 Series for doors 1/2 inch and up. Those are keyed to their own keyways, so they will not run on a Corbin Russwin 57A1 key system.
4) My opening uses a rim exit device, not a mortise lock - is the 606K76 the right part?
No. The 606K76 is a plug for 2-1/4 inch mortise cylinders. Rim devices take a rim cylinder: 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, while the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation to what the exit device requires.
5) What finishes does the 606K76 cylinder plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the mortise cylinder ring and the lock trim already on the door, since the plug face is what shows through the cylinder collar.
6) Why 7 pins instead of 6 on a Corbin Russwin mortise cylinder plug?
The extra chamber is about key control and master keying depth. A 7-pin X Class plug gives more usable combinations and tighter control over who can duplicate keys, which is why it shows up in offices, schools, hospitals, and multi-tenant buildings where one master system covers a lot of doors. A 7-pin plug also will not accept a 6-pin key bitting, so the whole cylinder has to be built as 7-pin.
7) Is this a residential deadbolt cylinder or a commercial part?
Commercial. The 606K76 is a service part for Corbin Russwin mortise lock cylinders, not a residential deadbolt cylinder. If you're rekeying a house deadbolt or handleset, look at retrofit cylinders like the Kaba Ilco 1549 key-in-deadbolt cylinder or the Medeco 1075127 5-pin rim type lazy motion cylinder for handlesets and deadbolts.
8) I need to change keying on a lot of doors quickly. Is a plug like this the right approach, or should I use interchangeable cores?
A plug swap is a bench or on-door service job: you pull the cylinder, change the plug and pins, and reassemble. That's fine for maintaining an existing Corbin Russwin mortise system. If the goal is rekeying fleets of doors in seconds without disassembly, an interchangeable core platform is the better fit, such as the BEST 1CB 150 Series interchangeable core or the Schlage 20-057 6-pin FSIC rim cylinder. Those are different hardware platforms, though, so switching means changing cylinders, not just plugs.
9) Do I get keys or pins with the 606K76 plug?
Treat it as the plug alone. The 606K76 is sold as a replacement cylinder component for rekeying work, so plan on supplying your own pins, springs, and 57A1 key blanks. Cylinders that ship with cut keys are a different kind of item, for example the Schlage 20-022 rim cylinder which is listed with two keys.
10) What is the closest 7-pin alternative if I want high security instead of the standard 606K76 plug?
Within 7-pin options, the BEST 1CDF is a drill resistant patented interchangeable core in 7-pin brass, 150 Series, and gives patented key control through a removable core rather than a pinned plug. The Corbin Russwin 606K76 is a 7-pin Individual X Class plug on the 57A1 keyway that stays with the existing 2-1/4 inch mortise cylinder shell. Choose the 1CDF only if the lock accepts an interchangeable core housing; keep the 606K76 if you are servicing an existing Corbin Russwin mortise cylinder.
11) I need to rekey a key-in-lever lock, not a mortise cylinder - what takes the place of the 606K76 there?
Key-in-knob and key-in-lever locks use a different cylinder body entirely. The Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the 1579 Series is a knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder; the Falcon A23161-05 G is a key-in-lever cylinder for RU/T series in the 6-pin G keyway, keyed different with two cut keys. The Corbin Russwin 606K76 serves 2-1/4 inch mortise cylinders only.
12) What about an aluminum storefront door with an Adams Rite deadlock - does the 606K76 work there?
No. Narrow stile storefront deadlocks are served by cylinder pulls or the Adams Rite mortise cylinder: the 4024 cylinder pull mounts with a trim plate for MS1847 deadlock and deadlatch systems, the 4025 is a five-pin tumbler cylinder pull with through-screws for the same MS1847, and the 4026 is a five-pin cylinder pull for the 5017 wood door deadlock. The Corbin Russwin 606K76 is a service plug for 2-1/4 inch Corbin Russwin mortise cylinders.
13) We are replacing residential deadbolt and handleset cylinders - is the 606K76 usable?
No, it is a commercial mortise cylinder plug. For handleset and deadbolt retrofits the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a 5-pin retrofit for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, the 1065244 is a 5-pin lazy motion rim cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim lazy motion single cylinder for handlesets and deadbolts. Emtek also lists the CY4 cylinder as a parts item.
14) Is a dummy cylinder an acceptable stand-in for the 606K76 on an opening that does not need keying?
Only where no key function is wanted at all. The BEST 12E Series dummy rim cylinder is a 1-5/32 inch diameter rim dummy that fills the hole without operating anything. The Corbin Russwin 606K76 is a working 7-pin Individual X Class plug on the 57A1 keyway for 2-1/4 inch mortise cylinders, so it is the part to order whenever the cylinder must actually turn a key.
15) Does the finish choice on the 606K76 line up with the FSIC cores we stock?
The Corbin Russwin 606K76 plug comes in 606 Satin Brass and 626 Satin Chrome. Among interchangeable core comparables, the Schlage 20-057-C full size interchangeable core is offered in 643E Aged Bronze with the C keyway, which is a darker finish family. If you are standardizing visible cylinder faces across a facility, match on the exposed cylinder and collar rather than on the plug alone.
How fast can I get the Corbin Russwin 606K76 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 606K76 57A1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K76 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 606K76 57A1 626?
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