Corbin Russwin 606K77 7-Pin In...
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Corbin Russwin 606K77 7-Pin Individual X Class Plug for 2-1/2" Mortise Cylinder with 27B2 Keyway

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Model: 606K77 27B2 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 Plug for 2-1/2" Mortise Cylinder with 27B2 Keyway

The Corbin Russwin 606K77 is a 7-Pin Individual X Class replacement plug engineered specifically for 2-1/2" mortise cylinder applications. Designed for the 27B2 keyway, this satin brass plug is a genuine Corbin Russwin cylinder component ideal for commercial lock maintenance, re-keying, and cylinder servicing. Its X Class configuration ensures precise compatibility within the Corbin Russwin keying system for secure, reliable performance in demanding commercial environments.

Key Features

  • 7-Pin Configuration: Features a 7-pin tumbler design for enhanced key combination capacity and improved security in commercial applications.
  • Individual X Class Plug: X Class designation ensures proper fit and keying compatibility within the Corbin Russwin cylinder system.
  • 2-1/2" Mortise Cylinder Compatibility: Precisely engineered for use with 2-1/2" mortise cylinders, ensuring accurate replacement and proper function.
  • 27B2 Keyway: Configured for the 27B2 keyway, maintaining keyway-restricted security and system integrity during replacement or re-keying.
  • Satin Brass Finish: Finished in satin brass for a professional appearance and corrosion resistance suited to commercial door hardware installations.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin component, ensuring OEM-level fit, finish, and performance for cylinder maintenance and repair.
  • Commercial-Grade Construction: Designed for commercial mechanical lock applications, providing durable and dependable service in high-use 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 27B2
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings Requiring Cylinder Re-Keying or Maintenance
  • Educational Facilities with Mortise Lock Systems
  • Healthcare Institutions Using Corbin Russwin Keying Systems
  • Government and Municipal Buildings with Restricted Keyway Programs
  • Hospitality Properties Maintaining Master Key Systems
  • Industrial and Warehouse Facilities with Commercial Mortise Locks
  • Multi-Tenant Commercial Properties Requiring Cylinder Component Replacement

Why Corbin Russwin 606K77?

Corbin Russwin cylinder components are manufactured to exacting OEM standards, ensuring that replacement parts like the 606K77 plug deliver the same precision fit and reliable performance as original equipment. Engineered for commercial-grade mortise cylinder applications, this 7-pin X Class plug maintains the integrity of your Corbin Russwin keying system with proper 27B2 keyway compatibility, a trusted choice for locksmiths and facility managers alike.

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 27B2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 27B2 626 – Frequently Asked Questions

1) What exactly is the Corbin Russwin 606K77, a complete cylinder or just the plug?
It's just the plug, the rotating key-bearing core of a mortise cylinder, not a complete cylinder. The 606K77 is a 7-pin Individual X Class replacement plug for 2-1/2 inch Corbin Russwin mortise cylinders, sold as a service part for re-keying and cylinder repair. If you need a whole cylinder rather than the internal plug, order a full mortise cylinder instead.
2) Will the 606K77 plug work in my Corbin Russwin cylinder if my keys are not 27B2?
No. The plug is broached for the 27B2 keyway, so it only accepts 27B2 keys. Putting it into a system keyed to a different Corbin Russwin keyway means your existing keys won't enter it. Check the keyway stamped on your current cylinder or key bow first, and order the plug in the matching keyway if it isn't 27B2.
3) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 606K77?
The Corbin Russwin 606K77 is a replacement plug for a 2-1/2 inch mortise cylinder, not a whole cylinder, so it only helps if the cylinder shell is staying in the door. When a full mortise cylinder is needed, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a five-pin mortise cylinder in the 4036 Series rated Grade 1 with a 1/2 inch minimum door thickness.
4) Is a BEST interchangeable core an equivalent replacement for the Corbin Russwin 606K77 plug?
No. The 606K77 is a 7-pin Individual X Class plug cut for the Corbin Russwin 27B2 keyway and drops into an existing 2-1/2 inch mortise cylinder shell. A BEST interchangeable core is a self-contained core that pulls out with a control key, such as the 1C5 standard 5-pin core, the 1CB 150 Series interchangeable core, or the 1CDF drill resistant patented 7-pin brass core in the 150 Series. Those require a BEST IC housing, so they are not a plug-for-plug swap in a Corbin Russwin conventional mortise cylinder.
5) My exit device takes a rim cylinder, not a mortise cylinder. What replaces the Corbin Russwin 606K77 there?
The 606K77 plug is built for 2-1/2 inch mortise cylinders, so it will not serve a rim application. Schlage rim options include the 20-021 6-pin rim cylinder with a vertical tailpiece cam and two keys, and the 20-022 6-pin rim cylinder with a horizontal tailpiece cam and two keys. If the opening is on a full size interchangeable core program, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam.
6) Will the Corbin Russwin 606K77 work in a key-in-knob or key-in-lever lock?
No. The 606K77 is a plug for 2-1/2 inch mortise cylinders in the Corbin Russwin 27B2 keyway. Key-in-knob and key-in-lever bodies take a different cylinder form: 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, the 1599 Series is a key-in-knob replacement cylinder, and the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T Series 6-pin G keyway supplied keyed different with two cut keys.
7) For an Adams Rite MS1847 aluminum storefront door, is the Corbin Russwin 606K77 the right cylinder part?
No. The 606K77 is a 27B2 keyway plug for 2-1/2 inch Corbin Russwin mortise cylinders. For Adams Rite MS1847 deadlock and deadlatch hardware, the 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull that mounts with through-screws. On wood doors, the 4026 five pin tumbler cylinder pull is built for the Adams Rite 5017 wood door deadlock and deadlatch.
8) What finishes does the 606K77 mortise plug come in, and does the finish need to match the cylinder?
Two finishes: 606 satin brass and 626 satin chrome. The plug face is the only part visible once it's installed in the cylinder, so pick the one that matches your existing cylinder ring or collar, brass to brass, chrome to chrome, otherwise the exposed face will read off against the rest of the trim.
9) Can I use this plug to re-key a Corbin Russwin master key system without breaking the system?
Yes, that's its purpose. Because it's a genuine Corbin Russwin 7-pin X Class plug in the 27B2 keyway, it can be pinned to your existing master key schedule and keeps the restricted keyway intact, which matters on the office, school, healthcare and hospitality master systems these cylinders typically run. You supply the pinning; the plug ships as a component, not pre-keyed to your system.
10) What do I use for a deadbolt instead of the Corbin Russwin 606K77 plug?
The 606K77 is a mortise cylinder plug and carries no deadbolt function. For deadbolt cylinders, the Kaba Ilco 1549 Series is a key-in-deadbolt cylinder listed with a deadbolt function, and 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, and the 1065140 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders.
11) I only need a non-keyed filler for one side of the door. Does the Corbin Russwin 606K77 do that?
No. The 606K77 is a keyed 7-pin X Class plug for the 27B2 keyway, intended for re-keying and servicing working Corbin Russwin mortise cylinders. Where a non-operating part is wanted, the BEST 12E Series dummy rim cylinder has a 1-5/32 inch diameter and fills a rim prep without keyed function.
12) Does the Corbin Russwin 606K77 fit an Emtek residential handleset?
No. The 606K77 is a commercial-duty plug for Corbin Russwin 2-1/2 inch mortise cylinders in the 27B2 keyway. For Emtek hardware, the Emtek CY4 cylinder is sold each as an Emtek part, and Medeco offers the 1065244 5-pin rim lazy motion rim type cylinder supplied with an Emtek tailpiece.
13) Is the 606K77 a commercial part or is it for residential locks?
Commercial. It's a service component for commercial mortise lock cylinders, the kind found in office buildings, institutions and multi-tenant properties. Residential deadbolts and knob locks use different cylinder formats altogether.
14) Will a rim cylinder like the Schlage 20-021 work where this mortise plug is used?
No, those are different cylinder types. A rim cylinder such as the Schlage 20-021 (6-pin, vertical tailpiece cam) mounts through the door and drives a rim exit device or night latch with a tailpiece. The 606K77 plug belongs inside a threaded 2-1/2 inch mortise cylinder that screws into a mortise lock case and turns a cam. They are not interchangeable.
15) What finishes does the Corbin Russwin 606K77 plug come in compared with other cylinder parts?
The Corbin Russwin 606K77 7-pin 27B2 plug is offered in 606 satin brass and 626 satin chrome, which lets it match the trim already on the mortise lock. Among comparable cylinder parts, the Schlage 20-057-C full size interchangeable core is listed in 643E aged bronze with the C keyway.
How fast can I get the Corbin Russwin 606K77 27B2 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 27B2 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 27B2 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 27B2 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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