Corbin Russwin 606K78 7-Pin In...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$94.00
$81.02
Image coming soon

Corbin Russwin 606K78 7-Pin Individual X Class Cylinder Plug for 2-3/4" Mortise with 67A2 Keyway in Satin Brass

(No reviews yet) Write a Review

Model: 606K78 67A2 626

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

$94.00
$81.02
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Corbin Russwin 606K78 7-Pin Individual X Class Cylinder Plug for 2-3/4" Mortise with 67A2 Keyway in Satin Brass

The Corbin Russwin 606K78 is a 7-Pin Individual X Class Cylinder Plug engineered specifically for 2-3/4" mortise lock applications. Featuring the 67A2 keyway and a Satin Brass finish, this genuine Corbin Russwin cylinder part is designed as a precision replacement component for compatible Corbin Russwin mortise cylinder systems. Built to commercial-grade standards, this plug delivers reliable, secure key operation in demanding institutional and commercial environments.

Key Features

  • 7-Pin Configuration: Individual X Class plug with a 7-pin design for enhanced key control and security in commercial mortise lock applications.
  • Mortise Compatibility: Specifically designed for 2-3/4" mortise lock cylinders, ensuring precise fit and reliable operation within compatible Corbin Russwin hardware.
  • 67A2 Keyway: Engineered with the 67A2 keyway for dedicated key control, restricting unauthorized key duplication and maintaining access integrity.
  • Satin Brass Finish: Satin Brass finish provides a professional aesthetic that coordinates with complementary door hardware finishes in commercial settings.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring proper fit, function, and longevity when used with compatible mortise cylinders.
  • Commercial-Grade Construction: Designed for commercial applications where consistent, dependable key operation is required across high-traffic door openings.

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: 606K78 67A2
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 606K78?

Corbin Russwin cylinder parts are manufactured to exacting tolerances, ensuring seamless integration with compatible mortise lock systems. The 606K78's 7-pin X Class plug and dedicated 67A2 keyway deliver the key control and operational consistency that commercial security professionals demand in high-traffic, institutional-grade installations.

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:
606K78 67A2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K78 67A2 626 – Frequently Asked Questions

1) Will the 606K78 plug work with my existing Corbin Russwin keys?
Only if your system runs the 67A2 keyway. The plug is cut for 67A2, which is a restricted Corbin Russwin keyway used for key control, so keys from any other keyway will not enter it. Confirm the keyway stamped on your current cylinders before ordering, and expect the plug to be keyed to your system by whoever maintains it.
2) Can I use this plug in a rim cylinder or a key-in-knob cylinder?
No. The 606K78 is built for 2-3/4 inch mortise cylinder applications only. For a rim device you want a rim cylinder, for example the Schlage 20-021 with vertical tailpiece cam or the 20-022 with horizontal cam. For a key-in-knob or lever replacement, the Kaba Ilco 1539 universal knob/lever cylinder is the type to look at.
3) If I need a complete mortise cylinder rather than just a plug, what should I order instead of the Corbin Russwin 606K78?
The 606K78 is a replacement cylinder plug, the keyed core component that drops into a compatible Corbin Russwin 2-3/4 inch mortise cylinder, not a whole cylinder assembly. If the opening needs a complete mortise cylinder, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder with a Schlage C keyway, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder from the 4036 Series with a 1/2 inch minimum door thickness. Both are full cylinders with their own keying, so they replace the housing and plug together rather than rekeying an existing Corbin Russwin body.
4) What is the interchangeable core equivalent if I want to be able to swap cores without disassembling the cylinder?
The Corbin Russwin 606K78 is a 7-pin plug that is serviced inside the mortise cylinder body, so rekeying means pulling and pinning the plug. For a system where the keyed element pulls out with a control key instead, look at BEST interchangeable cores: the 1CDF is a drill resistant patented 7-pin brass interchangeable core in the 150 Series, the 1CB is a Peaks 150 Series interchangeable core, and the 1C5 is a standard 5-pin core. Schlage's 20-057 is a 6-pin full size interchangeable core rim cylinder, and the 20-057-C is an FSIC core in the C keyway. These are different keying platforms, so they do not accept Corbin Russwin 67A2 keys.
5) We are replacing a keyed knob or lever cylinder, not a mortise cylinder. What takes the place of the 606K78 there?
The 606K78 is a mortise cylinder plug and will not fit a key-in-knob or key-in-lever chassis. For those, the Kaba Ilco 1539 is a universal key-in-knob and lever cylinder, the 1579 is a knob and lever cylinder made for Sargent locks, and the 1599 is a key-in-knob replacement cylinder. Falcon's A23161-05 G is a key-in-lever cylinder for the RU/T series with a 6-pin G keyway, keyed different and supplied with two cut keys. Each of those is keyed to its own keyway rather than Corbin Russwin 67A2.
6) What does 7-pin X Class mean on a Corbin Russwin cylinder plug?
Seven pin chambers instead of the more common six, run within Corbin Russwin's X Class Individual keying program. More chambers plus a restricted keyway means tighter key control and more available change keys across a masterkeyed facility, which is why it shows up in schools, hospitals, and government buildings rather than single-door jobs. A 5-pin core like the BEST 1C5 is the simpler, lower key-control end of the same idea.
7) If I want interchangeable cores instead of rekeying plugs, what should I buy?
A plug like the 606K78 is swapped or repinned inside the cylinder, which means a locksmith and a disassembled cylinder every time keying changes. If you would rather pull and replace a core by hand, go to an interchangeable-core system: the BEST 1CB Peaks 150 Series interchangeable core, the BEST 1CDF drill-resistant 7-pin patented core, or Schlage's 20-057 full size interchangeable core rim cylinder. Those are a different keying platform, so they are a facility-wide decision, not a one-door swap.
8) Can a Schlage 20-021 or 20-022 rim cylinder be used in place of the Corbin Russwin 606K78?
No. The 606K78 is a plug for a 2-3/4 inch mortise cylinder. The Schlage 20-021 and 20-022 are rim cylinders, threaded and mounted through the door with a tailpiece to drive rim hardware, the 20-021 with a vertical tailpiece cam and the 20-022 with a horizontal one. Rim and mortise cylinders mount differently and are not interchangeable, so a rim cylinder is the answer only when the device on the door is rim exit hardware rather than a mortise lock.
9) What is the simpler five-pin alternative if seven-pin key control is more than the opening needs?
The 606K78 uses a 7-pin X Class plug with the 67A2 keyway for restricted key control. Where a standard five-pin setup is adequate, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder and the BEST 1C5 is a standard 5-pin cylinder core. These carry fewer pin positions and are not part of a Corbin Russwin restricted keyway program, so duplication control comes from whatever key system the facility already runs.
10) The door has an Adams Rite MS1847 deadlock in an aluminum storefront. Is the Corbin Russwin 606K78 the right part?
No. The 606K78 plug serves Corbin Russwin 2-3/4 inch mortise cylinders. 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 with through-screws, both built for that lock. On a wood door running the Adams Rite 5017 deadlock or deadlatch, the 4026 five pin tumbler cylinder pull is the matching part.
11) Is there a high security or drill resistant option to consider alongside the Corbin Russwin 606K78?
The 606K78 gets its key control from the 7-pin X Class plug and the 67A2 keyway, which restricts unauthorized duplication. For a physically hardened option on the same doors, the BEST 1CDF is a drill resistant patented interchangeable core in 7-pin brass, 150 Series. Medeco also offers retrofit cylinders such as the 1065140 5-pin retrofit for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders. These run on their own key systems, so a building standardized on 67A2 would be introducing a second keyway.
12) Will the 606K78 work on a residential-style deadbolt or handleset?
The 606K78 is a commercial replacement part for Corbin Russwin mortise cylinders and does not fit residential deadbolt or handleset bodies. For those, Medeco offers rim type lazy motion cylinders: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Emtek also lists the CY4 cylinder as a replacement part.
13) Is the 606K78 suitable for high-traffic commercial doors, or is it a residential part?
Commercial. The 606K78 is a genuine Corbin Russwin replacement part rated by the manufacturer for commercial use, and it is specified for institutional openings: office buildings, schools, healthcare, municipal buildings, multi-tenant residential, warehouses, and retail. It is not a residential-grade part and there is no residential version of it.
14) I need a non-keyed filler for an unused cylinder hole, not a working plug. What do I order?
The 606K78 is a functioning keyed plug for a mortise cylinder. If the opening has a cylinder prep that needs to be filled without live key operation, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the non-operating option. It is a rim-format dummy, so confirm the door prep is a rim hole rather than a threaded mortise cylinder bore before ordering.
15) How do I match finish between the 606K78 plug and other cylinders on the same door?
The Corbin Russwin 606K78 plug is offered in 606 Satin Brass and 626 Satin Chrome, so a satin chrome opening and a satin brass opening can both be matched from the same part number family. Among comparable cylinders, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze, a darker finish that will not coordinate with either satin option, so plan the trim finish around the lock set rather than the core.
How fast can I get the Corbin Russwin 606K78 67A2 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 606K78 67A2 626 come with a warranty?
Absolutely. The Corbin Russwin 606K78 67A2 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 606K78 67A2 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
Why buy the Corbin Russwin 606K78 67A2 626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!