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 77B2 Keyway

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Model: 606K77 77B2 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 77B2 Keyway

The Corbin Russwin 606K77 is a 7-Pin Individual X Class Cylinder Plug engineered for use with 2-1/2" mortise cylinders and configured with the 77B2 keyway. Finished in Satin Brass, this commercial-grade replacement cylinder plug is a precision component designed to maintain the security and operational integrity of Corbin Russwin mortise cylinder assemblies. Purpose-built for professional locksmiths and commercial facility maintenance teams, it integrates seamlessly into compatible Corbin Russwin cylinder housings.

Key Features

  • 7-Pin X Class Configuration: Individual X Class plug with a 7-pin chamber design for enhanced key control and security depth in commercial applications.
  • 2-1/2" Mortise Compatibility: Specifically sized for 2-1/2" mortise cylinders, ensuring a precise fit within compatible Corbin Russwin cylinder housings.
  • 77B2 Keyway: Pre-configured with the 77B2 keyway profile for accurate key blank matching and seamless integration into existing master key systems.
  • Satin Brass Finish: Finished in Satin Brass to provide a refined, professional appearance consistent with coordinated commercial door hardware installations.
  • Commercial-Grade Replacement Part: Designed as a direct replacement cylinder component within the Corbin Russwin cylinder parts family, supporting long-term serviceability of mortise lock assemblies.
  • Genuine Corbin Russwin Cylinder Part: An authentic Corbin Russwin cylinder component, ensuring manufacturer-level compatibility and quality for professional installations and service applications.

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 77B2
  • 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 components are manufactured to exacting commercial standards, delivering the precision and consistency required for reliable mortise lock serviceability. The 606K77 plug supports professional-grade key control through its X Class configuration and 77B2 keyway, making it an essential replacement part for locksmiths and facility managers maintaining Corbin Russwin mortise hardware in demanding 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:
606K77 77B2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 77B2 626 – Frequently Asked Questions

1) What keyway does the Corbin Russwin 606K77 plug come in, and can I add it to an existing master key system?
The plug is machined for the 77B2 keyway, so it accepts 77B2 key blanks and drops into an existing Corbin Russwin system already running that keyway. Keyway has to match the rest of the system exactly, a 7-pin plug in the wrong section will not accept your keys.
2) If I need a complete mortise cylinder rather than just a plug, what should I order?
The Corbin Russwin 606K77 supplies only the keyed plug for a 2-1/2 inch Corbin Russwin mortise cylinder. If the whole cylinder body is being replaced, a complete mortise cylinder is the right item: the Adams Rite 4036 is a five-pin mortise cylinder in the 4036 Series rated Grade 1, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder in the Schlage C keyway. Both are full assemblies rather than internal service parts, and neither carries the Corbin Russwin 77B2 keyway.
3) Can a Schlage 20-021 rim cylinder be used in place of the Corbin Russwin 606K77 cylinder plug?
No. The Corbin Russwin 606K77 is a 7-pin Individual X Class cylinder plug — the keyed plug component that goes inside a 2-1/2 inch Corbin Russwin mortise cylinder housing, supplied with the 77B2 keyway. The Schlage 20-021 is a complete 6-pin rim cylinder with a vertical tailpiece cam and two keys, intended to mount through a door for rim device use. One is a service part for an existing mortise cylinder body, the other is a whole cylinder for a different mounting type, so they are not interchangeable.
4) I need to re-key a key-in-lever or deadbolt, not a mortise lock. Is the 606K77 the right part?
No. The Corbin Russwin 606K77 plug is sized for 2-1/2 inch Corbin Russwin mortise cylinders. For knob, lever, and deadbolt cylinders the correct items are different: the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, the Kaba Ilco 1579 is a knob and lever cylinder for Sargent, and the Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with two cut keys.
5) Does the 606K77 come keyed, or do I have to pin it myself?
It is an individual plug supplied as a replacement component for a locksmith to pin and key to the system. Plan on cutting keys and pinning the 7 chambers yourself to whatever combination the building's 77B2 system requires.
6) Is a 7-pin X Class plug interchangeable with a 6-pin Corbin Russwin plug?
No. The 606K77 is a 7-pin X Class plug and the chamber count and class have to match the cylinder and the key system. A 6-pin key will not operate a 7-pin plug pinned for a 7-pin system, and the X Class configuration is what provides the added key control depth. Confirm both pin count and class on the cylinder you are rebuilding.
7) I manage a commercial building with Corbin Russwin mortise locks, is this the right part to rekey a failed cylinder?
If the cylinder housing is sound and the problem is the plug, yes. The 606K77 restores a 2-1/2 inch Corbin Russwin mortise cylinder to service in the 77B2 keyway, and it is a genuine Corbin Russwin part so it stays consistent with the rest of the openings. It is a commercial-grade component and is normally handled by a locksmith, not swapped from the outside of the door like a core.
8) Can I use the 606K77 plug in a rim cylinder or a key-in-knob cylinder?
No. It is built for mortise cylinder bodies, which thread into the lock case and drive a cam. Rim and key-in-lever cylinders use different bodies and tailpieces, so you would want a rim cylinder like the Schlage 20-021 (vertical tailpiece cam) or 20-022 (horizontal cam), or a key-in-lever cylinder such as the Kaba Ilco 1539 universal or the Falcon A23161-05 G 6-pin.
9) How does the 606K77 plug differ from a BEST interchangeable core?
The Corbin Russwin 606K77 is a 7-pin Individual X Class plug that is fitted into a Corbin Russwin 2-1/2 inch mortise cylinder housing and keyed to the 77B2 keyway. A BEST interchangeable core is pulled and swapped with a control key instead: the BEST 1CDF is a drill-resistant patented interchangeable core with 7 pins in brass from the 150 Series, and the BEST 1CB is a Peaks 1CB 150 Series interchangeable core. Those are core-based systems for BEST housings, while the 606K77 rebuilds a conventional Corbin Russwin cylinder.
10) Is there a simpler 5-pin option than the 7-pin 606K77 plug?
The Corbin Russwin 606K77 is a 7-pin plug, which is what its X Class key control depends on. For a lower pin count in a different platform, the BEST 1C5 is a standard 5-pin cylinder core, and the Adams Rite 4036 mortise cylinder is a five-pin design. Neither uses the Corbin Russwin 77B2 keyway, so choosing one means keying outside an existing Corbin Russwin master key system rather than into it.
11) Does the 606K77 work with Adams Rite cylinder pulls?
No. The Corbin Russwin 606K77 is a replacement plug for 2-1/2 inch Corbin Russwin mortise cylinders. The Adams Rite cylinder pulls are separate devices built around their own deadlocks: the 4024 uses trim plate mounting for MS1847 deadlock systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the MS1847, and the 4026 is a five pin tumbler cylinder pull for the Adams Rite 5017 wood door deadlock. Those are specified to Adams Rite locks rather than to Corbin Russwin mortise cylinder housings.
12) For a residential handleset or deadbolt retrofit, is the Corbin Russwin 606K77 a match?
The 606K77 is a commercial mortise cylinder plug and is not intended for residential handleset hardware. Retrofit cylinders built for that work include the Medeco 1075127, a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the Medeco 1012040, a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the Medeco 1065140, a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, and the Medeco 1065244, a 5-pin rim lazy motion cylinder with an Emtek tailpiece.
13) If the opening needs no key function at all, is there an alternative to ordering the 606K77?
Yes. The Corbin Russwin 606K77 is a keyed 7-pin X Class plug in the 77B2 keyway, so it is only worth ordering where the cylinder must operate by key. Where a cylinder opening needs to be filled without key function, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the non-keyed option. It fills a rim cylinder prep rather than rebuilding a mortise cylinder.
14) The 606K77 comes in Satin Brass and Satin Chrome. What if I need a darker finish to match existing trim?
The Corbin Russwin 606K77 plug is offered in 606 Satin Brass and 626 Satin Chrome. For a darker cylinder face, the Schlage 20-057-C full size interchangeable core is furnished in 643E Aged Bronze. That is a Schlage FSIC core in the C keyway, so it is a finish match only, not a functional substitute for a Corbin Russwin mortise cylinder plug.
How fast can I get the Corbin Russwin 606K77 77B2 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 77B2 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 77B2 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 77B2 626?
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