Corbin Russwin 606K77 7-Pin In...
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$94.00
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Corbin Russwin 606K77 7-Pin Individual X Class Cylinder Plug for 2-1/2" Mortise with 77B1 Keyway

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Model: 606K77 77B1 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 77B1 Keyway

The Corbin Russwin 606K77 is a 7-Pin Individual X Class replacement cylinder plug engineered specifically for 2-1/2" mortise cylinders using the 77B1 keyway. Finished in satin brass, this precision-machined cylinder component is designed as a direct-fit replacement part for compatible Corbin Russwin mortise cylinder assemblies, making it an ideal solution for facilities managers and locksmiths performing cylinder maintenance or rekeying operations in commercial environments.

Key Features

  • 7-Pin X Class Configuration: Individual X Class plug with 7-pin tumbler arrangement for enhanced key control and security in commercial mortise applications.
  • Mortise Compatibility: Specifically designed for 2-1/2" mortise cylinders, ensuring precise fit and reliable operation within compatible Corbin Russwin cylinder assemblies.
  • 77B1 Keyway: Features the proprietary 77B1 keyway profile, maintaining keyway-specific key control and compatibility within Corbin Russwin keying systems.
  • Satin Brass Finish: Finished in satin brass for a refined, professional aesthetic that integrates seamlessly with matching commercial door hardware.
  • Direct Replacement Part: Engineered as an OEM-grade replacement component for Corbin Russwin mortise cylinder assemblies, supporting efficient field service and maintenance.
  • Commercial Grade Construction: Manufactured to Corbin Russwin's exacting commercial standards for durability and consistent performance 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 77B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 606K77?

Corbin Russwin cylinder components are manufactured to meet the rigorous demands of commercial door security, delivering precise tolerances and consistent performance required of professional-grade mortise cylinder assemblies. The 606K77 plug's 7-pin X Class configuration and 77B1 keyway design reflect Corbin Russwin's commitment to engineered key control solutions trusted by locksmiths and facility professionals across demanding commercial applications.

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 77B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 77B1 626 – Frequently Asked Questions

1) I need to rekey a bank of office doors. Can I just swap plugs instead of replacing whole cylinders?
That's exactly what this part is for. Pulling the cam and retainer and dropping in a fresh 606K77 plug lets a locksmith rekey a 2-1/2 inch Corbin Russwin mortise cylinder in place rather than buying complete cylinders for every opening. The shells, rings and cams you already have stay on the doors. It only works where the existing cylinders are the 2-1/2 inch Corbin Russwin mortise type and the system runs 77B1.
2) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 606K77?
The 606K77 is a replacement cylinder plug only, intended to go back into an existing 2-1/2 inch Corbin Russwin mortise cylinder housing. If the whole cylinder needs to be replaced, a complete mortise cylinder is the right item: the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway. Both are full assemblies, so they carry their own keyway and will not stay on a Corbin Russwin 77B1 key system.
3) Is a BEST interchangeable core the same thing as the Corbin Russwin 606K77 plug?
No. The 606K77 is a 7-pin X Class plug that is pinned and installed inside a 2-1/2 inch Corbin Russwin mortise cylinder shell. A BEST core is a self-contained figure-eight core that drops into a BEST housing and is removed with a control key: the 1C5 is a standard 5-pin core, and the 1CDF is a drill resistant patented 7-pin brass core in the 150 series. The 7-pin count on the 1CDF does not make it a substitute, because the body shape and the housing it seats in are different.
4) What do I use if the opening takes a rim cylinder instead of a mortise cylinder?
The 606K77 plug only serves 2-1/2 inch mortise cylinders, so it will not work behind rim exit device trim. For rim applications, 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 cam; the 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Confirm which cam orientation the exit device requires before ordering.
5) Will the 606K77 plug work in a key-in-lever or key-in-knob lockset?
No. It is machined for 2-1/2 inch mortise cylinder bodies, not for the cylinder that threads into a knob or lever chassis. For those, the Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with two cut keys, and the Kaba Ilco 1539 is a universal key-in-knob and lever cylinder. For a key-in-knob replacement specifically, the Kaba Ilco 1599 covers that, and the 1579 is built for Sargent knobs and levers.
6) Can I use the 606K77 on an Adams Rite MS1847 aluminum storefront deadlock?
No. The 606K77 is a plug for a Corbin Russwin 2-1/2 inch mortise cylinder and does not address storefront cylinder pull hardware. For an MS1847 deadlock or deadlatch, the Adams Rite 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull that mounts with through-screws. On a wood door the 4026 is the five pin tumbler cylinder pull built for the Adams Rite 5017 wood door deadlock or deadlatch.
7) What finishes does the 606K77 cylinder plug come in?
Two: 606 satin brass and 626 satin chrome. Pick the one that matches the cylinder face and the lock trim already on the door, since the plug face is the visible part once it's installed.
8) Why choose a 7-pin X Class plug over a standard 6-pin cylinder for a commercial building?
The 7-pin X Class arrangement gives more differs and tighter key control, which is what you want when a facility runs a master key system and does not want keys duplicated off the street. It's a commercial-grade component. If you are working on a door that only needs a straightforward 6-pin mortise cylinder with no proprietary key control, something like the Detex MC65 mortise cylinder in Schlage C keyway is the simpler route.
9) I want a keying system a maintenance tech can swap without pinning. Is the 606K77 the wrong direction?
It depends on how you want service handled. The 606K77 is an individual X Class plug, so rekeying means pinning the plug at the bench or in the field. If you would rather pull and replace a core with a control key, a full size interchangeable core is the format to spec: the Schlage 20-057-C is an FSIC core in the C keyway with a 643E aged bronze finish, and the BEST 1CB is a 150 series interchangeable core cylinder. Those move you off the Corbin Russwin 77B1 key system.
10) What should I order for a deadbolt cylinder instead of the 606K77?
The 606K77 plug serves mortise cylinder bodies and is not a deadbolt part. The Kaba Ilco 1549 is a key-in-deadbolt cylinder, and Medeco offers several retrofit deadbolt cylinders: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a 5-pin retrofit for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Match the retrofit to the lock brand already on the door.
11) I need a non-keyed filler for a cylinder hole, not a working plug. What is the right part?
The 606K77 is a functioning 7-pin keyed plug and is not intended as a filler. For a cylinder opening that needs to be dressed without key function, the BEST 12E series dummy rim cylinder with a 1-5/32 inch diameter is the type of part to specify. Verify the hole prep matches the rim format before ordering.
12) We standardize finishes across a building. Does the 606K77 come in chrome as well as brass, and what if I need a darker finish?
The 606K77 plug is offered in 606 satin brass and 626 satin chrome, so it can follow either a brass or a chrome hardware program on Corbin Russwin mortise cylinders. If the opening calls for a dark finish on a cylinder, the Schlage 20-057-C full size interchangeable core is supplied in 643E aged bronze, though it is an FSIC core in the C keyway rather than a Corbin Russwin plug.
How fast can I get the Corbin Russwin 606K77 77B1 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 77B1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 77B1 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 77B1 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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