Corbin Russwin 606K76 7-Pin In...
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Corbin Russwin 606K76 7-Pin Individual X Class Cylinder Plug for 2-1/4" Mortise with 77B1 Keyway

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Model: 606K76 77B1 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 Cylinder Plug for 2-1/4" Mortise with 77B1 Keyway

The Corbin Russwin 606K76 is a 7-Pin Individual X Class replacement cylinder plug designed specifically for use with 2-1/4" mortise lock applications. Featuring the 77B1 keyway and a Satin Brass finish, this precision-engineered cylinder part is a genuine Corbin Russwin component intended for commercial-grade mechanical lock systems. It delivers reliable, drop-in compatibility for facilities managers and locksmiths maintaining Corbin Russwin mortise cylinder hardware.

Key Features

  • 7-Pin Configuration: Individual X Class plug with 7-pin tumbler design for enhanced key control and security in commercial mortise applications.
  • Mortise Compatibility: Engineered specifically for 2-1/4" mortise cylinder housings, ensuring precise fit and reliable operation.
  • 77B1 Keyway: Designed around the 77B1 keyway specification for seamless integration with existing Corbin Russwin keying systems.
  • Satin Brass Finish: Satin Brass finish provides a professional appearance consistent with coordinated commercial hardware installations.
  • Genuine Replacement Part: An authentic Corbin Russwin cylinder part, purpose-built for maintaining and servicing Corbin Russwin mortise lock hardware.
  • Commercial-Grade Construction: Manufactured to the quality standards expected in commercial door hardware applications, supporting long-term reliability 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: 606K76 77B1
  • 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 606K76?

Corbin Russwin cylinder components are engineered to the exacting standards required for commercial door hardware applications. The 606K76 Individual X Class plug is a genuine manufacturer part, ensuring proper fit and performance when servicing or re-keying 2-1/4" mortise cylinders with the 77B1 keyway. For facilities that rely on Corbin Russwin hardware, using authentic replacement parts maintains the integrity and security of the overall locking system.

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 77B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K76 77B1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 606K76 a complete mortise cylinder or just the plug?
It's the plug only, not a complete cylinder. The 606K76 is a 7-pin Individual X Class replacement cylinder plug for 2-1/4 inch Corbin Russwin mortise cylinder housings. If you need a whole cylinder rather than the internal plug, look at a complete mortise cylinder such as the Adams Rite 4036 mortise cylinder instead.
2) Will this Corbin Russwin plug fit a rim cylinder or an interchangeable core housing?
No. The 606K76 is built for 2-1/4 inch mortise housings only. For a rim device you'd need a rim cylinder such as the Schlage 20-021 with a vertical tailpiece cam or 20-022 with a horizontal cam, and for an interchangeable core system a BEST 1C 5-pin core or 1CDF 7-pin drill resistant core.
3) If the whole 2-1/4 inch mortise cylinder needs replacing instead of just the plug, what is a complete mortise cylinder option?
The Corbin Russwin 606K76 is a 7-pin plug for 2-1/4 inch mortise cylinders with the 77B1 keyway, so it serves a housing you already have in the door. When the housing itself is being replaced, the Adams Rite 4036 is a complete mortise cylinder with five-pin security, Grade 1, in the 4036 Series, and the Detex MC65 is a complete 1-1/8 inch 6-pin mortise cylinder with a Schlage C keyway. Because those two carry their own keyways, they key to their own systems rather than to a 77B1 Corbin Russwin system.
4) What is the 7-pin alternative if the facility wants interchangeable cores rather than servicing plugs?
The Corbin Russwin 606K76 is a 7-pin Individual X Class plug, so re-keying is done at the plug inside the existing 2-1/4 inch mortise cylinder. A facility that wants cores swapped by hand instead can look at the BEST 1CDF, a drill resistant patented interchangeable core with 7 pins in brass, 150 Series, or the BEST 1CB Peaks 150 Series interchangeable core. Those are core-based systems on BEST keyways, not Corbin Russwin 77B1 parts.
5) What should I order instead if the cylinder is in a knob or lever rather than a mortise lock?
The Corbin Russwin 606K76 is built for 2-1/4 inch mortise cylinder housings. For key-in-knob and key-in-lever bodies, the Kaba Ilco 1539 Series is a key-in-knob/lever universal cylinder, the 1579 Series is a knob and lever cylinder for Sargent, the 1599 is a key-in-knob replacement cylinder, 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.
6) Why a 7-pin plug instead of 6-pin for a commercial building?
Seven pins with the 77B1 keyway is a restricted-style setup for key control, which is why it shows up in offices, schools, hospitals and government buildings where you don't want keys duplicated at a hardware counter. A 6-pin commercial cylinder like the Detex MC65 in Schlage C keyway is the more open alternative, easier to source keys for but with less control.
7) Can I use this plug to re-key a Corbin Russwin mortise cylinder rather than replace the whole cylinder?
Yes. Swapping the plug is the normal way to bring a 2-1/4 inch Corbin Russwin mortise cylinder onto a new key or repair a damaged plug without pulling and replacing the entire cylinder. You keep the existing housing and cam.
8) How do I order the right Corbin Russwin cylinder plug, what do I specify?
Call it out by model 606K76 with the 77B1 keyway, then pick the finish, 606 Satin Brass or 626 Satin Chrome. Keyway and housing size are the two that decide whether it works; finish is cosmetic.
9) Is a rim cylinder a substitute for the Corbin Russwin 606K76?
No. The 606K76 is a plug for a 2-1/4 inch mortise cylinder. Rim cylinders mount through the door face and drive a tailpiece: the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam, the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam, and the BEST 12E Series dummy rim cylinder has a 1-5/32 inch diameter. None of those fit a mortise cylinder housing.
10) For a deadbolt or handleset cylinder, what are the options instead of this Corbin Russwin plug?
The 606K76 plug serves commercial 2-1/4 inch mortise cylinders. Deadbolt and handleset work is a different part: the Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, and the Medeco 1065140 is a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders.
11) Is there a simpler 5-pin part than this 7-pin Corbin Russwin plug?
Yes, though on different platforms. The Corbin Russwin 606K76 is a 7-pin Individual X Class plug for 77B1. Lower pin counts include the BEST 1C5, a standard 5-pin cylinder core, and the Adams Rite 4036 mortise cylinder with five-pin security. Fewer pins means a smaller set of key differs, and neither part keys into a 77B1 Corbin Russwin system.
12) Will a cylinder pull for an Adams Rite deadlock work where this Corbin Russwin plug is used?
No. The 606K76 is a keyed plug that goes inside a 2-1/4 inch mortise cylinder. The Adams Rite 4024 is a cylinder pull with trim plate mounting for MS1847 deadlock/deadlatch systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the same MS1847 deadlock, and the 4026 is a five pin tumbler cylinder pull for the 5017 wood door deadlock/deadlatch. Those are pull trims tied to specific Adams Rite locks, not mortise cylinder internals.
13) We standardize on Schlage full size interchangeable cores. What is the equivalent to look at instead of the 606K76?
The Corbin Russwin 606K76 is a 77B1 keyway plug for 2-1/4 inch Corbin Russwin mortise cylinders, so it stays inside a Corbin Russwin keying system. On the Schlage side, the 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam supplied with two keys, and the 20-057-C is a full size interchangeable core with the C keyway in 643E Aged Bronze. Those standardize a facility on Schlage FSIC rather than on 77B1 plugs.
14) Is the 606K76 plug suitable for a house or only commercial doors?
Commercial. It's catalogued for commercial mechanical lock systems, and it only makes sense if you already run Corbin Russwin mortise hardware. For residential knob or deadbolt cylinders, a Kaba Ilco 1539 key-in-knob universal cylinder or 1549 key-in-deadbolt cylinder is the right family.
15) Does the finish choice on the 606K76 match how the comparable cylinders are offered?
The Corbin Russwin 606K76 plug is offered in 606 Satin Brass and 626 Satin Chrome, so it can be matched to coordinated commercial trim. Among the comparable cylinders, the Schlage 20-057-C is listed in 643E Aged Bronze, a darker bronze tone rather than a brass or chrome.
How fast can I get the Corbin Russwin 606K76 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 606K76 77B1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K76 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 606K76 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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