Corbin Russwin 606K76 7-Pin X ...
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$94.00
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Corbin Russwin 606K76 7-Pin X Class Mortise Cylinder Plug with 57D Keyway

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Model: 606K76 57D1 626
$94.00
$81.02

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

$94.00
$81.02
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Corbin Russwin 606K76 7-Pin X Class Mortise Cylinder Plug with 57D Keyway

The Corbin Russwin 606K76 is a 7-pin Individual X Class cylinder plug engineered specifically for mortise cylinder applications and featuring the 57D keyway. Designed as a precision replacement part within the Corbin Russwin cylinder system, this plug delivers reliable, professional-grade keying performance for commercial mechanical lock installations. Its X Class designation ensures controlled key distribution and enhanced key section security for facilities requiring restricted access management.

Key Features

  • 7-Pin Configuration: Features a full 7-pin tumbler layout for increased key combination capacity and enhanced security over standard 5- or 6-pin cylinder plugs.
  • X Class Keying: Individual X Class designation provides restricted key control, supporting controlled distribution of keys in commercial security programs.
  • 57D Keyway: Precisely cut for the 57D keyway profile, ensuring proper key blade fit and smooth operation when paired with compatible Corbin Russwin keys.
  • Mortise Cylinder Compatibility: Engineered for use in Corbin Russwin mortise cylinder applications, making it an ideal replacement component for existing mortise lock hardware.
  • Genuine Corbin Russwin Cylinder Part: Manufactured as an authentic Corbin Russwin cylinder component, ensuring dimensional accuracy and reliable performance within the Corbin Russwin product ecosystem.
  • Commercial-Grade Construction: Built to the standards required for commercial mechanical lock applications, supporting long-term, high-cycle use in demanding 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 57D1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings with Mortise Lock Hardware
  • Educational Facilities Requiring Key-Controlled Access
  • Healthcare Institutions with Restricted Keying Programs
  • Government and Municipal Buildings with Mortise Cylinder Systems
  • Multi-Tenant Residential and Mixed-Use Properties
  • Hospitality Facilities with Master Key Systems
  • Industrial and Institutional Facilities Undergoing Cylinder Rekeying

Why Corbin Russwin 606K76?

Corbin Russwin cylinder parts are manufactured to exacting tolerances, ensuring seamless compatibility with existing Corbin Russwin mortise cylinder hardware. The 606K76 plug's 7-pin, X Class configuration delivers the precision and key control demanded by professional locksmiths and facility managers in commercial environments where security integrity is paramount.

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 57D1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K76 57D1 626 – Frequently Asked Questions

1) What mortise cylinder lengths does the Corbin Russwin 606K76 plug come in?
Four mortise lengths are offered on the 606K76: 2-1/4 inch, 2-1/2 inch, 2-3/4 inch and 3 inch. Pick the length that matches the cylinder body already in the lock case, since the plug has to sit flush with the cylinder face for the cam to drive the lock correctly. Each length is available in both 606 satin brass and 626 satin chrome, and in D1 or D2.
2) What is the difference between the D1 and D2 keyway options on the Corbin Russwin 606K76?
D1 and D2 are the two key section choices offered within the 57D keyway family on this 7-pin X Class plug. They are ordered separately because a key cut on one section will not enter the other, so specify whichever section your existing Corbin Russwin key system already uses. Both are offered across all four mortise lengths and both finishes.
3) Will a Corbin Russwin 606K76 plug work in a 6-pin cylinder I already have?
No. The 606K76 is built as a 7-pin plug, so it needs a 7-pin cylinder shell with matching chamber spacing. Dropping it into a 5- or 6-pin housing leaves chambers unsupported and the cylinder will not key properly. Match the plug to a 7-pin Corbin Russwin mortise cylinder body.
4) Is the 606K76 a complete mortise cylinder or just the plug?
It is the plug only, the rotating core that carries the pin chambers and the keyway. It is sold as a replacement component for Corbin Russwin mortise cylinders, so you will still need the cylinder shell, cam, pins and springs to build a working cylinder. If you need a complete assembly instead, a full mortise cylinder such as the Adams Rite 4036 five-pin Grade 1 mortise cylinder or the Detex MC65 6-pin mortise cylinder in Schlage C keyway is the type to look at, though neither will accept Corbin Russwin 57D keys.
5) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 606K76?
The 606K76 is a cylinder plug - a replacement part for Corbin Russwin mortise cylinder applications, not a finished cylinder body. If the opening needs a whole mortise cylinder, the Detex MC65 is a complete mortise cylinder, 6-pin, 1-1/8 inch, cut to the Schlage C keyway, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 series suiting doors 1/2 inch and up. Both come as assembled cylinders on their own keyways, so they replace the cylinder rather than rekey an existing Corbin Russwin one.
6) What is the closest 7-pin alternative to the Corbin Russwin 606K76 if the facility is not on a Corbin Russwin keyway?
The 606K76 plug is cut for the Corbin Russwin 57D keyway in D1 and D2 variations, so it only serves doors already on that system. For a 7-pin restricted-key program on a different platform, the BEST 1CDF is a drill resistant preferred patented interchangeable core, 7-pin, brass, 150 series. The difference in approach matters: the 1CDF is a removable interchangeable core swapped without disassembly, while the 606K76 is a plug fitted inside an existing mortise cylinder body.
7) For an aluminum storefront door, would the 606K76 work or do I need something else?
The 606K76 suits Corbin Russwin mortise cylinder hardware, not narrow-stile storefront prep. For aluminum storefront, Adams Rite cylinder pulls are the usual answer: the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws, both designed for the Adams Rite MS1847 deadlock or deadlatch. The 4026 five pin tumbler cylinder pull is the wood-door counterpart for the 5017 wood door deadlock or deadlatch.
8) What does X Class mean on a Corbin Russwin cylinder plug, and do I need it?
X Class is Corbin Russwin's Individual restricted key designation. Key blanks in that section are distribution controlled, so keys cannot be casually duplicated at a hardware counter. If your facility runs a key control program, schools, hospitals, government buildings and multi-tenant properties being the usual cases, you want the plug to match that class. If your building is on standard open keyways, an X Class plug will not accept those keys.
9) I want to rekey a whole building quickly instead of repinning plugs. What should I be looking at?
Repinning a 606K76 plug is a bench job per opening, which is fine for a handful of doors but slow across a facility. For fast field rekeying, an interchangeable core system is the usual answer, for example the BEST 1CB Peaks 150 Series interchangeable core or the BEST 1CDF drill resistant patented 7-pin core, where a control key swaps the core in seconds. Schlage's 20-057 FSIC rim cylinder is the full size interchangeable core route. Note that moving to IC means changing the cylinder housings, not just the plugs.
10) How do I specify the right Corbin Russwin 606K76 plug when ordering?
Three things settle the order: mortise length (2-1/4, 2-1/2, 2-3/4 or 3 inch) to match the cylinder body, key section D1 or D2 within the 57D keyway to match your existing system, and finish, 606 satin brass or 626 satin chrome. The base model designation is 606K76 57D1. Keys and pinning are separate, this is the plug itself.
11) Is a BEST 1C5 core a substitute for the Corbin Russwin 606K76 plug?
No. The BEST 1C5 is a standard 5-pin interchangeable core from the standard and premium cores line, designed to drop into BEST-format interchangeable core housings. The 606K76 is a 7-pin plug for Corbin Russwin mortise cylinders on the 57D keyway. They are different formats and different pin counts, so the 1C5 will not fit a Corbin Russwin mortise cylinder body.
12) We need a rim cylinder for an exit device, not a mortise plug - what takes the place of the 606K76 there?
The 606K76 is built for mortise cylinder applications, so it does not serve a rim-prepped exit device. Schlage's 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and two keys, and the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam. Choose between them by the cam orientation the exit device chassis expects.
13) Is there a simpler option than the 606K76 for a deadbolt or key-in-knob cylinder swap?
Yes, but they are different parts. The 606K76 is a mortise cylinder plug for a restricted 57D key program. For deadbolt and key-in-knob work, Kaba Ilco offers the 1549 key-in-deadbolt cylinder and the 1599 key-in-knob replacement cylinder, both catalogued for deadbolt function, and the 1539 universal key-in-knob and lever cylinder. Those are conventional-key replacement cylinders rather than restricted-keyway plugs.
14) Our building standard is full size interchangeable core - can we keep using the 606K76?
The 606K76 is a fixed plug for Corbin Russwin mortise cylinders, so it is keyed at the plug rather than swapped as a core. If the standard is full size interchangeable core, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam and two keys, and the 20-057-C is a full size interchangeable core cylinder on the C keyway in 643E aged bronze. Those let a facility swap cores without pulling the cylinder apart.
15) What looks like a match for the 606K76 but will not work in a Corbin Russwin mortise cylinder?
A few cylinders sit close in the catalog but do not interchange. The BEST 12E dummy rim cylinder at 1-5/32 inch diameter has no pinning at all and is a filler. The Falcon A23161-05 G is a key in lever cylinder on the RU/T series 6-pin G keyway. The Kaba Ilco 1579 is a knob and lever cylinder made for Sargent locks. None of those are mortise cylinder plugs on the Corbin Russwin 57D keyway, which is what the 606K76 provides in D1 and D2.
16) Between the 606K76 and a BEST 1CB core, which suits a campus wanting patented key control?
Both address key control differently. The 606K76 carries the Individual X Class designation for restricted key distribution and runs 7 pins on the 57D keyway inside Corbin Russwin mortise cylinders. The BEST Peaks 1CB is a 150 series interchangeable core cylinder, and the BEST 1CDF is a drill resistant preferred patented 7-pin core in the same 150 series. The deciding factor is whether the campus hardware is prepped for Corbin Russwin mortise cylinders or for BEST interchangeable cores.
17) Which finish should I order to match my existing mortise cylinder trim, 606 or 626?
606 is satin brass and 626 is satin chrome. Match the plug face to the cylinder ring and lock trim already on the door, since the plug face is the visible part once the cylinder is installed. Both finishes cover all four mortise lengths and both D1 and D2 key sections.
18) Is the Corbin Russwin 606K76 suitable for high traffic commercial doors?
Yes, it is a commercial rated part, built for mechanical lock applications in offices, schools, healthcare, government buildings, hotels and multi-tenant residential where cylinders see heavy daily use. It is not a residential grade component.
19) We use Medeco on the residential side of the portfolio - do any of those cylinders cross over to the 606K76 openings?
They do not. Medeco's retrofit cylinders in this range are built for residential deadbolt and handleset platforms: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a 5-pin retrofit for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. The 606K76 is a commercial mortise cylinder plug, so the two sides of the portfolio stay on separate parts.
20) Is the Emtek CY4 cylinder an alternative to the Corbin Russwin 606K76?
No. The Emtek CY4 is a single cylinder sold as a part for Emtek hardware, and the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece for that same platform. The 606K76 is a 7-pin plug for Corbin Russwin mortise cylinders on the 57D keyway in 606 satin brass and 626 satin chrome, so it belongs to a different lock system entirely.
How fast can I get the Corbin Russwin 606K76 57D1 626 delivered?
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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 57D1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K76 57D1 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 57D1 626?
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