Corbin Russwin 606K77 7-Pin In...
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Corbin Russwin 606K77 7-Pin Individual X Class Plug for 2-1/2" Mortise Cylinder, 27A1 Keyway

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Model: 606K77 27A1 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 Plug for 2-1/2" Mortise Cylinder, 27A1 Keyway, Satin Brass

The Corbin Russwin 606K77 is a 7-Pin Individual X Class replacement plug engineered specifically for 2-1/2" mortise cylinders with a 27A1 keyway configuration. Finished in Satin Brass, this commercial-grade cylinder part is designed to integrate seamlessly into Corbin Russwin mortise cylinder assemblies, providing reliable keying performance for professional locksmithing and facility maintenance applications. Its X Class plug designation ensures precise compatibility within Corbin Russwin's keying system hierarchy, making it a trusted choice for commercial door hardware projects.

Key Features

  • 7-Pin Configuration: Features a 7-pin tumbler design for enhanced key control and security depth within Corbin Russwin's X Class keying system.
  • Mortise Cylinder Compatibility: Specifically designed for use with 2-1/2" mortise cylinders, ensuring a precise fit within compatible Corbin Russwin cylinder housings.
  • 27A1 Keyway: Configured with the 27A1 keyway for accurate key-to-plug engagement and compatibility within designated master key systems.
  • X Class Plug Designation: Individual X Class classification supports controlled keying hierarchies for commercial access management applications.
  • Satin Brass Finish: Satin Brass finish provides a professional appearance consistent with commercial hardware aesthetics.
  • Genuine Corbin Russwin Cylinder Part: An authentic OEM replacement component designed to maintain the performance standards of Corbin Russwin mortise cylinder assemblies.
  • Commercial-Grade Construction: Manufactured to commercial specifications for dependable use in high-demand institutional and commercial 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 27A1
  • 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 606K77?

Corbin Russwin cylinder parts are manufactured to exacting commercial standards, ensuring reliable integration with existing Corbin Russwin mortise cylinder assemblies. The 606K77 Individual X Class plug delivers consistent keying performance and precise mechanical tolerances demanded by professional locksmiths and facility security managers. Engineered for demanding commercial applications, this replacement plug upholds the performance integrity of Corbin Russwin's trusted cylinder systems.

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 27A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 27A1 626 – Frequently Asked Questions

1) Is the Corbin Russwin 606K77 a complete mortise cylinder or just the plug?
It's the plug only. The 606K77 is a 7-pin Individual X Class replacement plug that drops into a 2-1/2 inch Corbin Russwin mortise cylinder housing, not a finished cylinder you can thread into a lock. If the existing housing, cam and shell are still good and you only need to re-key or restore the plug, this is the part. If the whole cylinder is damaged, order a complete mortise cylinder instead.
2) Will the 606K77 plug work in my existing Corbin Russwin master key system?
Only if your system runs the 27A1 keyway and X Class keying. The 606K77 is cut for the 27A1 keyway with a 7-pin chamber layout, so it keys into an X Class hierarchy built on that keyway. A cylinder on a different Corbin Russwin keyway, or a 6-pin system, won't accept it.
3) Does the 606K77 fit a rim cylinder or a key-in-knob cylinder?
No. It's built for 2-1/2 inch Corbin Russwin mortise cylinders only. For a rim application you'd 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 key-in-knob or lever replacement, the Kaba Ilco 1599 key-in-knob cylinder is that style of part.
4) If the whole mortise cylinder needs replacing instead of just the plug, what should be ordered?
The Corbin Russwin 606K77 is a replacement plug for 2-1/2 inch mortise cylinders, so it only helps when the cylinder shell stays in the door. If the complete cylinder is being swapped, a full mortise cylinder such as the Detex MC65, a 1-1/8 inch 6-pin commercial mortise cylinder in the Schlage C keyway, or the Adams Rite 4036 five-pin mortise cylinder, a Grade 1 unit in the 4036 Series, covers that job. Note that both of those bring their own keyway, so they will not run on a 27A1 key system the way the 606K77 plug does.
5) Is a BEST interchangeable core an equivalent to the Corbin Russwin 606K77 plug?
They solve the same maintenance problem in different ways. The 606K77 is a 7-pin plug that is rekeyed into an existing 2-1/2 inch Corbin Russwin mortise cylinder shell. A BEST interchangeable core, such as the 1C Series standard 5-pin core or the 1CDF drill resistant 7-pin brass core in the 150 Series, is pulled and swapped with a control key and requires a BEST interchangeable-core housing in the door. If the opening already has Corbin Russwin mortise cylinders keyed to 27A1, the 606K77 keeps that system intact; moving to BEST cores means changing the cylinder housings as well.
6) Can a property manager install a Corbin Russwin cylinder plug, or does this need a locksmith?
Plan on a locksmith. Swapping a plug means disassembling the cylinder shell, managing top pins and springs, and pinning the new plug to your key bitting. It also has to be cut into an X Class keying hierarchy, which means access to the system's key records. This is a bench part for a locksmith or an in-house security shop, not a screwdriver job at the door.
7) We want to standardize keying across a facility without re-keying every plug by hand. Is there an alternative to this plug?
An interchangeable core system is the usual answer. With small or full size IC, you pull and swap cores with a control key instead of stripping plugs at the bench. BEST offers the 1CB Peaks 150 Series interchangeable core and the 1CDF drill resistant patented 7-pin core in the same 150 Series family, and Schlage offers the 20-057 6-pin FSIC rim cylinder with a convertible tailpiece cam. The 606K77 plug, by contrast, is a fixed-cylinder part that has to be pinned individually.
8) Is a 7-pin plug worth it over a 6-pin for a commercial building?
The seventh chamber buys you more master keying depth and tighter key control, which matters when one system has to cover a lot of doors with multiple levels of access. The 606K77 is a 7-pin plug on the 27A1 keyway. Six-pin commercial cylinders are common too, like the Detex MC65 mortise cylinder in Schlage C keyway, but they give you fewer usable differs in a large hierarchy. Note you cannot mix a 7-pin plug into a shell drilled for six chambers.
9) What is the difference between the 606K77 mortise plug and a rim cylinder?
The 606K77 is a plug for a threaded 2-1/2 inch mortise cylinder, which drives a lock through a cam behind the cylinder. A rim cylinder mounts from the inside face of the door and drives an exit device or rim lock with a tailpiece: 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. Rim and mortise cylinders are not interchangeable, so confirm which body style the existing lock takes before ordering.
10) For a key-in-lever or deadbolt cylinder rather than a mortise cylinder, what replaces the 606K77?
The 606K77 plug fits 2-1/2 inch mortise cylinders only. For key-in-lever and deadbolt bodies, 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 key-in-knob and lever universal cylinder while the 1549 is a key-in-deadbolt cylinder. Those are separate cylinder types, so a lever or deadbolt opening is not served by the mortise plug.
11) For an aluminum storefront with an Adams Rite MS deadlock, is the Corbin Russwin 606K77 the right part?
No. The 606K77 is a 7-pin plug that goes into an existing 2-1/2 inch Corbin Russwin mortise cylinder. Adams Rite MS1847 deadlock and deadlatch openings use a cylinder pull: the 4024 mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws, both for the MS1847. For a wood door deadlock, the 4026 five pin tumbler cylinder pull is built for the Adams Rite 5017 wood door deadlock/deadlatch.
12) What finishes does the Corbin Russwin 606K77 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Match the plug face to the cylinder ring and the rest of the door trim, since the plug face is the visible part once the cylinder is installed.
13) Is this Corbin Russwin part rated for high traffic institutional use?
It's built to commercial specification and intended for institutional openings, schools, hospitals, government buildings, offices, multi-tenant residential, retail and warehouses. As an OEM Corbin Russwin cylinder part it keeps the original mechanical tolerances of the cylinder assembly rather than introducing an aftermarket plug into the system.
14) What finishes does the 606K77 plug come in, and how does that compare with other cylinder options?
The Corbin Russwin 606K77 7-pin X Class plug is offered in 606 Satin Brass and 626 Satin Chrome. Among comparable cylinders, the Schlage 20-057-C full size interchangeable core in the C keyway is listed in 643E Aged Bronze, so matching a darker existing trim set means looking at that style of core rather than the satin plug finishes.
15) When a cylinder is only needed to fill a hole and not to operate a lock, is the 606K77 the economical choice?
No. The 606K77 is a functioning 7-pin keyed plug for a 2-1/2 inch mortise cylinder. Where a cylinder face is needed for appearance only, the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is the part made for that, since it has no operating function.
How fast can I get the Corbin Russwin 606K77 27A1 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 27A1 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 27A1 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 27A1 626?
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