Corbin Russwin 606K78 7-Pin In...
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Corbin Russwin 606K78 7-Pin Individual X Class Plug for 2-3/4" Mortise Cylinder with 67B1 Keyway

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Model: 606K78 67B1 626

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

$94.00
$81.02
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Corbin Russwin 606K78 7-Pin Individual X Class Plug for 2-3/4" Mortise Cylinder with 67B1 Keyway

The Corbin Russwin 606K78 is a 7-Pin Individual X Class Plug engineered specifically for use with 2-3/4" mortise cylinders and the 67B1 keyway. Finished in Satin Brass, this precision-manufactured cylinder plug is a genuine Corbin Russwin component designed to maintain the performance and security integrity of compatible Corbin Russwin mortise lock assemblies. Intended for commercial-grade applications, this replacement plug ensures accurate key control and proper cylinder function in high-demand environments.

Key Features

  • 7-Pin Configuration: Individual X Class plug with a 7-pin tumbler arrangement for enhanced key control and security performance in commercial mortise cylinder applications.
  • Mortise Cylinder Compatibility: Designed specifically for 2-3/4" mortise cylinders, ensuring precise dimensional fit and reliable operation within compatible Corbin Russwin lock assemblies.
  • 67B1 Keyway: Features the 67B1 keyway profile for accurate key bitting alignment and controlled key duplication within the Corbin Russwin keyway system.
  • Satin Brass Finish: Factory-applied Satin Brass finish coordinates with matching door hardware for a consistent, professional appearance in commercial installations.
  • Genuine Corbin Russwin Component: Manufactured as an authentic Corbin Russwin cylinder part, ensuring compatibility, quality tolerances, and performance standards consistent with original equipment.
  • Commercial-Grade Construction: Built to the specifications required for demanding commercial environments where consistent cylinder performance and long service life are essential.
  • Direct Replacement Part: Serves as a precision replacement plug for existing Corbin Russwin 2-3/4" mortise cylinder assemblies, supporting maintenance and rekeying operations without full cylinder replacement.

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 67B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 606K78?

Corbin Russwin cylinder components are manufactured to exacting commercial-grade standards, delivering the dimensional accuracy and material quality required for dependable mortise lock performance. The 606K78 Individual X Class Plug is engineered to integrate seamlessly with compatible Corbin Russwin 2-3/4" mortise assemblies, supporting security professionals and facilities managers who require reliable, genuine replacement parts for maintenance and rekeying operations in high-traffic 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:
606K78 67B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K78 67B1 626 – Frequently Asked Questions

1) What exactly is the Corbin Russwin 606K78 plug, and is it a complete cylinder?
It is a plug only, not a whole cylinder. The 606K78 is a 7-pin Individual X Class plug made to go into a 2-3/4 inch Corbin Russwin mortise cylinder with the 67B1 keyway. If your cylinder shell, cam, and springs are still good and you only need to change the keyway or restore the plug, this is the part. If the cylinder body itself is damaged, you need a complete mortise cylinder instead.
2) Does the 67B1 keyway on this plug mean my existing Corbin Russwin keys will still work?
Only if your system is already on the 67B1 keyway. The plug is cut for the 67B1 profile, so keys from a different Corbin Russwin keyway will not enter it. Check the keyway stamp on your current cylinder or your keying records, then have the plug pinned to your existing bitting to keep the opening on the same key.
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 7-pin Individual X Class plug for 2-3/4 inch mortise cylinders with the 67B1 keyway - it is the keyed plug assembly, not a whole cylinder body. When the opening needs a complete mortise cylinder, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 Series, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway. Both are furnished as full cylinders, so they key to their own systems rather than to a Corbin Russwin 67B1 master key system.
4) Is the Corbin Russwin 606K78 plug the same thing as an interchangeable core?
No. The 606K78 is a 7-pin plug that goes into an existing 2-3/4 inch Corbin Russwin mortise cylinder shell, so rekeying means working on the cylinder itself. An interchangeable core pulls out with a control key instead: the BEST 1CB is a 1CB Series 150 interchangeable core, the BEST 1CDF is a drill-resistant patented 7-pin brass interchangeable core in the 150 Series, and the Schlage 20-057-C is a full size interchangeable core in the C keyway with a 643E Aged Bronze finish. Those are core-based systems and do not fit a Corbin Russwin mortise shell built for a plug.
5) My exit device takes a rim cylinder, not a mortise cylinder. What replaces the 606K78 there?
The 606K78 plug is dimensioned for 2-3/4 inch mortise cylinders, so it will not serve a rim application. For rim prep, 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 tailpiece cam; the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. The BEST 12E Series dummy rim cylinder at 1-5/32 inch diameter covers rim openings where no keyed function is wanted.
6) Is 7-pin worth it over a 6-pin cylinder for a commercial building?
A 7-pin plug gives you more chambers to work with, which means more usable master key combinations and tighter key control across a large facility. The trade-off is that everything on the opening has to stay in the same 7-pin system: 6-pin keys from another keyway will not operate it. For smaller buildings that do not need deep masterlevels, a 6-pin commercial cylinder such as the Detex MC65 in Schlage C keyway is the simpler path.
7) I manage a portfolio and want to stop buying full cylinders every time we rekey. Does this help?
That is what it is for. Swapping the plug lets you change the keying on an existing 2-3/4 inch Corbin Russwin mortise cylinder without replacing the whole assembly, so maintenance and rekeying stay cheaper than a full cylinder change. It does assume your openings are standardized on the 67B1 keyway. If you would rather not pin anything at all, an interchangeable-core system like the BEST 1CB 150 Series core pulls with a control key instead.
8) Can I use this plug to convert a rim cylinder or a key-in-lever cylinder?
No. This is a mortise cylinder plug and nothing else. For a rim device you want a rim cylinder such as the Schlage 20-021 with a vertical tailpiece cam or the 20-022 with a horizontal cam. For a knob or lever, a key-in-lever cylinder like the Kaba Ilco 1539 Series universal cylinder is the right family.
9) What do I use instead of the Corbin Russwin 606K78 if the lock is a key-in-knob or key-in-lever rather than a mortise lock?
Key-in-knob and key-in-lever bodies take their own cylinder, not a mortise plug like the 606K78. The Kaba Ilco 1539 is a key-in-knob/lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent locks, and the 1599 is a key-in-knob replacement cylinder. The Falcon A23161-05 G is a key-in-lever cylinder for RU/T Series with a 6-pin G keyway, keyed different and supplied with two cut keys. Each of these keys to its own keyway rather than the Corbin Russwin 67B1.
10) Will the 606K78 work on a deadbolt, or is there a different cylinder for that?
The 606K78 is a plug for 2-3/4 inch mortise cylinders, so a deadbolt takes a different part. The Kaba Ilco 1549 is a key-in-deadbolt cylinder, and 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) I need fewer pins than the Corbin Russwin 606K78 uses. What are the simpler options?
The 606K78 is a 7-pin plug, which supports deeper masterkeying levels. Where a straightforward 5-pin cylinder is enough, the BEST 1C5 is a standard 5-pin cylinder core, the Adams Rite 4036 is a five-pin Grade 1 mortise cylinder, and the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece. A 5-pin part keys to its own system and will not accept a 7-pin 67B1 key.
12) For an aluminum storefront door on an Adams Rite deadlock, is the 606K78 the right cylinder part?
No. The 606K78 is a plug for Corbin Russwin 2-3/4 inch mortise cylinders. Adams Rite storefront deadlocks use their own cylinder pulls: the 4024 cylinder pull mounts with a trim plate for MS1847 deadlock and deadlatch 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 wood door applications with the 5017 wood door deadlock or deadlatch.
13) What is the closest drill-resistant alternative if our spec calls for high security on the cylinder?
The 606K78 is a 7-pin Individual X Class plug in the 67B1 keyway, which gives controlled key duplication within the Corbin Russwin keyway system. If the spec asks specifically for drill resistance, the BEST 1CDF is a drill resistant preferred patented interchangeable core, 7-pin brass, in the 150 Series. It is a core rather than a plug, so it requires housing built for BEST full size interchangeable cores instead of a Corbin Russwin mortise shell.
14) Is the 606K78 rated for residential or commercial use?
Commercial. It is catalogued for commercial-grade mortise lock service, and the typical use is office buildings, schools, healthcare, government, retail, warehouse, and multi-tenant residential where cylinders get worked hard.
15) What model number should I give my locksmith to order this?
Ask for Corbin Russwin 606K78 with the 67B1 keyway, and state the finish you need, 606 Satin Brass or 626 Satin Chrome. The keyway designation matters as much as the model number, since the same plug body is built for several keyway profiles.
16) We have Emtek hardware on some units. Does the Corbin Russwin 606K78 fit those?
No - the 606K78 is a commercial mortise cylinder plug in the 67B1 keyway for 2-3/4 inch Corbin Russwin cylinders. Emtek trim takes its own parts: the Emtek CY4 cylinder is sold each, the Medeco 1065244 is a 5-pin rim lazy motion cylinder furnished with an Emtek tailpiece, and the Medeco 1065140 is a 5-pin retrofit cylinder listed for Emtek handleset and deadbolt outside cylinders.
How fast can I get the Corbin Russwin 606K78 67B1 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 67B1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K78 67B1 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 67B1 626?
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