Corbin Russwin 606K76 7-Pin In...
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Corbin Russwin 606K76 7-Pin Individual X Class Plug for 2-1/4" Mortise Cylinder with 57B1 Keyway

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Model: 606K76 57B1 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 Plug for 2-1/4" Mortise Cylinder with 57B1 Keyway, Satin Brass

The Corbin Russwin 606K76 is a 7-Pin Individual X Class replacement plug designed specifically for 2-1/4" mortise cylinders, featuring the 57B1 keyway and finished in Satin Brass. This commercial-grade cylinder part is engineered for precision compatibility within Corbin Russwin cylinder assemblies, making it an essential component for locksmiths and facility maintenance professionals requiring exact OEM specifications. Ideal for re-keying or restoring mortise cylinder cores to factory performance standards.

Key Features

  • 7-Pin Configuration: Individual X Class plug with a 7-pin design for enhanced key control and security in commercial mortise cylinder applications.
  • Precise Mortise Fit: Engineered specifically for 2-1/4" mortise cylinders, ensuring accurate fitment in compatible Corbin Russwin hardware assemblies.
  • 57B1 Keyway: Features the 57B1 keyway designation for controlled key compatibility and system integration within Corbin Russwin keying systems.
  • Satin Brass Finish: Finished in Satin Brass to complement a wide range of commercial door hardware aesthetics and coordinate with existing installations.
  • OEM Replacement Part: Genuine Corbin Russwin cylinder component designed to restore mortise cylinder assemblies to original manufacturer specifications.
  • Commercial Grade Construction: Built to the quality standards of Corbin Russwin's professional cylinder product line for dependable long-term performance in commercial 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: 606K76 57B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings Requiring Mortise Cylinder Maintenance
  • Educational Facilities with Corbin Russwin Keying Systems
  • Healthcare Institutions Maintaining Existing Hardware Infrastructure
  • Government and Municipal Buildings with Controlled Key Systems
  • Retail and Hospitality Properties Servicing Mortise Lock Hardware
  • Industrial and Warehouse Facilities Performing Lock Cylinder Re-Keying
  • Multi-Tenant Residential and Mixed-Use Properties

Why Corbin Russwin 606K76?

Corbin Russwin cylinder components are manufactured to exacting OEM standards, delivering the precision fitment and reliable key control that commercial facilities demand. The 606K76 Individual X Class plug is purpose-built for 2-1/4" mortise cylinders with the 57B1 keyway, ensuring seamless integration into existing Corbin Russwin hardware systems without compromise to performance or security integrity.

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 57B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K76 57B1 626 – Frequently Asked Questions

1) Will the 606K76 plug work in my Corbin Russwin mortise cylinder if my system uses a different keyway?
No. The plug is cut for the 57B1 keyway, so keys on any other Corbin Russwin keyway section will not enter it. Match the keyway on your existing system before ordering, or the plug will not accept your building keys.
2) Does the 606K76 fit a 1-1/8 inch mortise cylinder?
No. This plug is built for 2-1/4 inch mortise cylinders. A short 1-1/8 inch cylinder takes a shorter plug, so the wrong length will not seat. For a 1-1/8 inch commercial mortise cylinder as a complete part, the Detex MC65 is a 6-pin unit in the Schlage C keyway.
3) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 606K76?
The Corbin Russwin 606K76 is a 7-pin Individual X Class replacement plug for 2-1/4 inch mortise cylinders with the 57B1 keyway - it is the plug alone, for rebuilding or re-keying a cylinder you already have in hand. If the job calls for a whole cylinder, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security in the 4036 Series, and the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder in the Schlage C keyway. Those are complete cylinders with their own keyways, so they will not key into a Corbin Russwin 57B1 system.
4) Is an interchangeable core the same thing as the Corbin Russwin 606K76 plug?
No. The 606K76 is a plug that goes inside a 2-1/4 inch mortise cylinder shell and is serviced by a locksmith; the mortise cylinder stays in the lock. An interchangeable core such as the BEST 1CB in the 1CB Series, the BEST 1CDF drill resistant 7-pin brass 150 Series core, or the Schlage 20-057-C full size interchangeable core in the C keyway is pulled and swapped with a control key, with no cylinder disassembly. The two approaches are not interchangeable in the same housing.
5) My exit device takes a rim cylinder, not a mortise cylinder. What works there instead of the Corbin Russwin 606K76?
The 606K76 plug is built for 2-1/4 inch mortise cylinders, so it does not apply to a rim application. For rim, 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 Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Cam orientation is what decides which one your device accepts.
6) Why choose a 7-pin plug over a 6-pin for a commercial building?
The seventh chamber gives you more key differs and tighter key control, which matters in a facility running a master keyed system across many doors. The 606K76 is a 7-pin Individual X Class plug intended for exactly that kind of controlled commercial keying. By contrast, most standard rim and mortise cylinders, like the Schlage 20-021 rim cylinder, are 6-pin.
7) Do I get pins, springs or keys with the 606K76 plug?
The 606K76 is supplied as the plug itself. Plan on having your own top and bottom pins, springs and key blanks on hand for the 57B1 keyway, plus your pinning kit and follower, to finish the job.
8) I manage a building with mixed hardware. Can I use this plug to convert a Schlage or BEST cylinder to Corbin Russwin keying?
No. The plug only fits Corbin Russwin 2-1/4 inch mortise cylinder shells. To bring other openings onto one system you would replace the cylinder entirely, for example a BEST interchangeable core setup using a 1C 5-pin core or the 1CDF 7-pin drill resistant core, or a Schlage 20-057 full size interchangeable core cylinder.
9) I need to re-key a key-in-lever or deadbolt, not a mortise cylinder. Is the Corbin Russwin 606K76 the right part?
No - the 606K76 plug fits 2-1/4 inch mortise cylinders. For key-in-knob and lever work, the Kaba Ilco 1539 is a key-in-knob/lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder; the Kaba Ilco 1549 is a key-in-deadbolt cylinder. The Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with two cut keys.
10) How does the 7-pin Corbin Russwin 606K76 compare with 5-pin and 6-pin cylinder options?
The 606K76 is a 7-pin Individual X Class plug, a configuration Corbin Russwin uses for key control in commercial mortise cylinder systems. Among other pin counts, the BEST 1C5 is a standard 5-pin cylinder core and the BEST 1CDF is a 7-pin core; the Adams Rite 4036 mortise cylinder is five-pin, and the Detex MC65 mortise cylinder is 6-pin. Pin count is tied to the keying system the building already runs, so match it to the existing system rather than picking on count alone.
11) Will the Corbin Russwin 606K76 plug work in an Adams Rite cylinder pull or a residential handleset cylinder?
No. The 606K76 is a Corbin Russwin plug cut for the 57B1 keyway and sized for 2-1/4 inch Corbin Russwin mortise cylinders. The Adams Rite 4024 and 4025 cylinder pulls are made for the MS1847 deadlock/deadlatch and the 4026 pull for the 5017 wood door deadlock, and residential-style cylinders such as the Medeco 1012040 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts or the Medeco 1075127 5-pin rim type lazy motion single cylinder for handlesets and deadbolts are separate assemblies. None of those accept a Corbin Russwin mortise plug.
12) I need a cylinder for an Emtek handleset or deadbolt - does the Corbin Russwin 606K76 cover that?
It does not; the 606K76 is a Corbin Russwin mortise cylinder plug in the 57B1 keyway. For Emtek, the Medeco 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder supplied with an Emtek tailpiece, and the Emtek CY4 is an Emtek cylinder sold each.
13) What finishes does the Corbin Russwin 606K76 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder face and the rest of the trim on the opening, since the plug face is the visible part once assembled.
14) Is the 606K76 a genuine Corbin Russwin part or an aftermarket plug?
It is an OEM Corbin Russwin cylinder component, catalogued as a replacement part for their cylinder line. That matters if your facility is on a restricted or factory-registered Corbin Russwin key system, where aftermarket plugs can break the keying record.
15) Is this plug suitable for residential door locks?
It is classed as commercial hardware and is meant for Corbin Russwin mortise cylinders in institutional and commercial openings. For a residential deadbolt or handleset, a retrofit cylinder like the Medeco 1075127 5-pin rim type or the Kaba Ilco 1549 key-in-deadbolt cylinder is the right direction.
16) I need a non-keyed cylinder just to fill a hole - is the Corbin Russwin 606K76 usable that way?
No. The 606K76 is a keyed 7-pin plug for servicing 2-1/4 inch Corbin Russwin mortise cylinders, offered in 606 Satin Brass and 626 Satin Chrome. For a filler application, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the dummy option in this set.
How fast can I get the Corbin Russwin 606K76 57B1 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 57B1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K76 57B1 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 57B1 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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