Corbin Russwin 606K77 7-Pin In...
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Corbin Russwin 606K77 7-Pin Individual X Class Cylinder Plug for 2-1/2" Mortise with 27A2 Keyway, Satin Brass

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Model: 606K77 27A2 626

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

$94.00
$81.02
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Corbin Russwin 606K77 7-Pin Individual X Class Cylinder Plug for 2-1/2" Mortise with 27A2 Keyway in Satin Brass

The Corbin Russwin 606K77 is a 7-Pin Individual X Class cylinder plug designed specifically for use with 2-1/2" mortise cylinders and featuring the 27A2 keyway. Finished in satin brass, this commercial-grade replacement plug is engineered for seamless integration into Corbin Russwin cylinder assemblies, delivering the precision and reliability expected from a professional-grade cylinder component.

Key Features

  • 7-Pin X Class Configuration: Individual X Class plug with 7-pin stack for enhanced key control and security in commercial mortise cylinder applications.
  • 2-1/2" Mortise Compatibility: Precisely dimensioned for 2-1/2" mortise cylinders, ensuring a proper fit and reliable function in compatible locks.
  • 27A2 Keyway: Incorporates the Corbin Russwin 27A2 keyway for controlled key duplication and system master-keying compatibility.
  • Satin Brass Finish: Factory-applied satin brass finish provides a professional appearance consistent with coordinated door hardware installations.
  • Direct Replacement Part: Designed as a factory-spec replacement plug for Corbin Russwin cylinder assemblies, simplifying field servicing and re-keying operations.
  • Commercial-Grade Construction: Built to Corbin Russwin's standards for commercial mechanical lock components, supporting demanding institutional and 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: 606K77 27A2
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 606K77?

Corbin Russwin cylinder parts are manufactured to exacting standards for use in professional commercial door hardware systems. The 606K77 plug delivers factory-specification fit and finish, supporting dependable re-keying and cylinder servicing in high-traffic institutional and commercial environments where precision and long-term reliability are essential.

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:
606K77 27A2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 27A2 626 – Frequently Asked Questions

1) Will a 606K77 plug work in my Corbin Russwin cylinder if my system uses a different keyway?
No. This plug is cut for the Corbin Russwin 27A2 keyway, so keys from any other keyway family won't enter it. The keyway is machined into the plug itself and cannot be changed, so the plug has to match the keyway of the master key system the door belongs to. If your building runs a different Corbin Russwin keyway section, order the 606K77 in that keyway instead.
2) I have a 1-1/8 inch mortise cylinder on an exit device. Does this plug fit it?
No. The 606K77 plug is dimensioned for 2-1/2 inch Corbin Russwin mortise cylinders. A 1-1/8 inch mortise cylinder is a different length entirely, and for that size the Detex MC65 1-1/8 inch 6-pin mortise cylinder is a stocked option. Measure the cylinder length before ordering a plug, since plug and housing must be the same size family.
3) If I need a complete mortise cylinder rather than just the plug, what should I order instead of the Corbin Russwin 606K77?
The 606K77 is a replacement cylinder plug for 2-1/2 inch Corbin Russwin mortise cylinders with the 27A2 keyway, so it serves a locksmith who is rebuilding or re-keying an existing cylinder body. If you need a whole mortise cylinder delivered ready to install, the Detex MC65 is a 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 for doors from 1/2 inch thickness up. Both are complete cylinders, not plugs, and neither carries the Corbin Russwin 27A2 keyway.
4) Can I use a BEST interchangeable core in place of the Corbin Russwin 606K77 plug?
No. The 606K77 is an individual X Class 7-pin plug that drops into an existing 2-1/2 inch Corbin Russwin mortise cylinder shell and keys to the 27A2 keyway. BEST small format interchangeable core products such as the 1C5 standard 5-pin core, the 1CB 150 Series core, and the 1CDF drill-resistant patented 7-pin brass core are removable cores that require a BEST-style IC housing in the lock. They are a different servicing system, not a plug swap, so converting means changing the cylinder housing as well.
5) I have a key-in-knob or lever lock to re-key, not a mortise cylinder. Is the 606K77 the right part?
No. The 606K77 is dimensioned for 2-1/2 inch mortise cylinders. For knob and lever bodies, Kaba Ilco offers the 1539 Series key-in-knob/lever universal cylinder and the 1579 Series knob and lever cylinder for Sargent, plus the 1599 key-in-knob replacement cylinder; the Falcon A23161-05 G is a key-in-lever cylinder for RU/T Series with a 6-pin G keyway, keyed different with two cut keys. For a key-in-deadbolt, the Kaba Ilco 1549 Series covers that body.
6) For an aluminum storefront with an Adams Rite deadlock, is the Corbin Russwin 606K77 usable?
Not directly. The 606K77 is a plug for 2-1/2 inch Corbin Russwin mortise cylinders. Storefront openings running an Adams Rite MS1847 deadlock are typically served by the Adams Rite 4024 cylinder pull with trim plate mounting or the 4025 five pin tumbler cylinder pull with through-screws; for a wood door with the Adams Rite 5017 deadlock, the 4026 five pin tumbler cylinder pull applies.
7) What finishes does the Corbin Russwin 606K77 7-pin plug come in?
Two: 606 satin brass and 626 satin chrome. Pick the one that matches the visible face of the cylinder in the door so the plug doesn't read as an odd part against the rest of the trim on the opening. For a property manager standardizing a fleet of doors, 626 satin chrome is the usual match for brushed chrome and stainless lever sets, 606 for brass hardware.
8) Why choose an X Class plug instead of a standard Corbin Russwin plug?
X Class is a restricted, high key control platform. The 7-pin X Class plug gives tighter control over who can cut keys for the system, which is why it shows up in schools, hospitals, and government buildings where unauthorized duplication is the real risk rather than brute force. If your building has no key control program, a standard Corbin Russwin plug in the matching keyway does the same mechanical job.
9) I need an interchangeable core instead of a mortise plug. What should I look at?
A plug is captive in the cylinder body, so re-keying means pulling and rebuilding the cylinder. If you want to swap cores by hand instead, go to a small format interchangeable core line: the BEST 1CB 150 Series interchangeable core or the BEST 1CDF drill resistant patented 7-pin core cover that. For full size interchangeable core, the Schlage 20-057 FSIC rim cylinder with convertible tailpiece cam is the equivalent approach. Those are different key systems, so choose the one your building is already on.
10) What is the equivalent part if my opening uses a rim device instead of a mortise lock?
The 606K77 plug fits 2-1/2 inch mortise cylinders only. For a rim exit device, Schlage offers 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, each supplied with two keys; the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Match the cam orientation to what your exit device requires.
11) What is a simpler 5-pin alternative if I do not need the 7-pin X Class key control?
The 606K77 uses a 7-pin X Class stack for restricted key control in Corbin Russwin mortise cylinders. Where a conventional 5-pin cylinder is acceptable, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder, and BEST 1C5 is a standard 5-pin core. These are lower pin counts in different keying systems and will not join a 27A2 master key system.
12) Which cylinder should I use for a residential-style handleset or Kwikset deadbolt retrofit rather than the 606K77?
The 606K77 is a commercial mortise cylinder plug. For handleset and deadbolt retrofits, Medeco offers 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, the 1065244 5-pin rim lazy motion cylinder with Emtek tailpiece, and the 1065140 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders. Emtek also lists the CY4 cylinder sold each.
13) My facility standardizes on full size interchangeable core. How does that compare with the 606K77 approach?
With the 606K77 you service a Corbin Russwin mortise cylinder by replacing the individual X Class 7-pin plug, which is a bench or in-place plug swap keyed to 27A2. A full size interchangeable core program instead uses a control key to pull the core: Schlage lists the 20-057 6-pin FSIC rim cylinder with convertible tailpiece cam and the 20-057-C full size interchangeable core in the C keyway with a 643E aged bronze finish. The FSIC route changes cores without disassembly; the 606K77 route keeps your existing Corbin Russwin cylinder bodies.
14) Is the 606K77 plug suitable for a residential deadbolt rebuild?
It is a commercial component, built for Corbin Russwin mortise cylinders in office buildings, schools, healthcare, government, multi-tenant residential, retail and warehouse work. For a residential knob or deadbolt cylinder replacement, a universal retrofit cylinder is the right family, for example the Kaba Ilco 1549 key-in-deadbolt cylinder or the Kaba Ilco 1599 key-in-knob replacement cylinder.
15) Is there a non-keyed option that looks like the 606K77 but does not operate?
The 606K77 is a functioning 7-pin plug that accepts a 27A2 key. The BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is a non-operating cylinder used where only the appearance of a cylinder is needed. It is a rim-format dummy and not a substitute for a working mortise cylinder plug.
16) I need the plug finish to match satin chrome hardware rather than brass. What are my options?
The 606K77 27A2 plug is offered in 606 satin brass and 626 satin chrome, so you can match either trim scheme without leaving the Corbin Russwin 7-pin X Class part. Among other cylinders, the Schlage 20-057-C full size interchangeable core is listed in 643E aged bronze if you are matching a darker finish on a different cylinder format.
How fast can I get the Corbin Russwin 606K77 27A2 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 606K77 27A2 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 27A2 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 606K77 27A2 626?
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