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, 57B2 Keyway, Satin Brass

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Model: 606K77 57B2 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, 57B2 Keyway, Satin Brass

The Corbin Russwin 606K77 is a 7-pin Individual X Class replacement plug engineered for use with 2-1/2" mortise cylinders. Featuring the 57B2 keyway and a Satin Brass finish, this commercial-grade cylinder part is designed to integrate seamlessly with compatible Corbin Russwin mortise cylinder assemblies. Ideal for facilities management professionals and locksmiths requiring precision-fit cylinder components, this plug maintains the exacting tolerances expected from Corbin Russwin cylinder products.

Key Features

  • 7-Pin X Class Configuration: Individual X Class plug with 7-pin stack for enhanced key control and security in commercial applications.
  • Mortise Cylinder Compatibility: Engineered specifically for 2-1/2" mortise cylinders, ensuring a precision fit within compatible Corbin Russwin assemblies.
  • 57B2 Keyway: Factory-configured with the 57B2 keyway for consistent key section compatibility across Corbin Russwin keying systems.
  • Satin Brass Finish: Satin Brass finish delivers a refined, professional appearance suited for commercial door hardware installations.
  • Commercial-Grade Construction: Built to meet the demanding requirements of commercial applications including offices, institutions, and multi-tenant facilities.
  • Genuine Corbin Russwin Cylinder Part: Authentic OEM replacement component, maintaining performance standards of the original cylinder assembly.

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 57B2
  • 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 606K77?

Corbin Russwin cylinder components are trusted throughout the commercial door hardware industry for their precise manufacturing tolerances and reliable performance. The 606K77 Individual X Class plug delivers authentic OEM specifications, ensuring proper fit and function within compatible 2-1/2" mortise cylinder assemblies. For facilities requiring consistent key control and dependable hardware in high-use environments, Corbin Russwin replacement parts provide the professional-grade reliability that security-conscious applications demand.

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 57B2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 606K77 57B2 626 – Frequently Asked Questions

1) Does the 606K77 come keyed to my existing Corbin Russwin system?
The plug is factory configured with the 57B2 keyway, which is the key section it will accept. That keeps it consistent with other Corbin Russwin cylinders on the same 57B2 section, but the pinning is what determines whether a specific key operates it. If the rest of your building runs a different Corbin Russwin keyway, a 57B2 plug is the wrong part.
2) Is the Corbin Russwin 606K77 a complete mortise cylinder or just the plug?
The 606K77 is a replacement plug only - a 7-pin Individual X Class plug that drops into a compatible 2-1/2 inch Corbin Russwin mortise cylinder shell. If the whole cylinder needs to be replaced rather than re-plugged, a complete mortise cylinder such as the Adams Rite 4036, a Grade 1 five-pin mortise cylinder, or the Detex MC65, a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway, is the assembly-level part.
3) What should I use instead of the 606K77 if I want to rekey doors without disassembling cylinders?
The 606K77 is a fixed plug that has to be pinned and installed into the cylinder body. For facilities that want to swap keying at the door without taking the cylinder apart, an interchangeable core system is the alternative: the BEST 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill resistant patented 7-pin interchangeable core in brass, and the Schlage 20-057-C is a full size interchangeable core in the C keyway with a 643E Aged Bronze finish.
4) I need a cylinder for a key-in-lever lock, not a mortise case. Is the 606K77 the right part?
No - the 606K77 is a mortise cylinder plug in the 57B2 keyway. Key-in-knob and key-in-lever locks take a different cylinder body: the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T Series with a 6-pin G keyway, keyed different with two cut keys, and the Kaba Ilco 1539 and 1599 are key-in-knob and lever replacement cylinders.
5) What does 7-pin X Class mean on a Corbin Russwin cylinder plug?
It's a 7-pin stack rather than the more common 6, and X Class is Corbin Russwin's Individual key control designation. More pin positions and a restricted class give a facility tighter control over key duplication, which is why it turns up in offices, schools, hospitals, and government buildings.
6) I need a rim cylinder for an exit device, not a mortise plug. What should I look at?
A mortise plug won't help you there. For exit device applications look at rim cylinders: the Schlage 20-021 with a vertical tailpiece cam or the 20-022 with a horizontal cam, both 6-pin with two keys, or the 20-057 FSIC rim cylinder with a convertible tailpiece cam if you run interchangeable cores.
7) If I want interchangeable cores instead of rebuilding plugs, what's the alternative?
Interchangeable core is the other approach: you swap the core rather than repin a plug. BEST offers the 1C Series 5-pin standard core, the 1CB 150 Series interchangeable core, and the 1CDF drill resistant patented 7-pin brass core in the 150 Series if you want 7 pins and restricted keying like the X Class setup.
8) Will a rim cylinder work in place of the 606K77?
No. The 606K77 is a plug for a 2-1/2 inch mortise cylinder, which threads into a mortise lock case. Rim cylinders mount through the door behind a rim device and are not interchangeable with mortise prep - examples in that category are the Schlage 20-021 rim cylinder with a vertical tailpiece cam and the 20-022 with a horizontal tailpiece cam, both 6-pin. Confirm the existing prep is mortise before ordering the plug.
9) What is the difference between the 606K77 plug and a 5-pin cylinder core like the BEST 1C5?
The 606K77 carries a 7-pin stack in the 57B2 Corbin Russwin keyway and is built as a plug for a 2-1/2 inch mortise cylinder shell. The BEST 1C5 is a standard 5-pin cylinder core from the Standard and Premium Cores line, a removable core rather than a mortise plug. Pin count and keyway both differ, so the two do not key together on the same system.
10) Is there an alternative to the 606K77 for a narrow stile aluminum door with an MS deadlock?
The 606K77 suits mortise cylinder assemblies rather than MS-style narrow stile hardware. For Adams Rite MS1847 deadlock and deadlatch systems, the 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull using through-screws; for wood door applications with the Adams Rite 5017 deadlock, the 4026 five pin tumbler cylinder pull is the matching part.
11) What cylinder should I use for a deadbolt rather than a mortise lock?
The 606K77 plug is for 2-1/2 inch mortise cylinders. Deadbolt applications call for a deadbolt-function cylinder: the Kaba Ilco 1549 is a key-in-deadbolt cylinder, and Medeco offers rim type lazy motion cylinders for deadbolts and handlesets including the 1012040, a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, and the 1075127, a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts.
12) I have Sargent locks, not Corbin Russwin. Can I use the 606K77?
The 606K77 is configured with the 57B2 keyway for Corbin Russwin keying systems and fits compatible Corbin Russwin mortise cylinder assemblies. For Sargent knob and lever hardware, the Kaba Ilco 1579 is the cylinder made for Sargent.
13) What finishes does the Corbin Russwin 606K77 plug come in?
Two: 606 Satin Brass and 626 Satin Chrome. Pick the one that matches the cylinder face and the balance of the trim on the opening, since the plug face is visible at the keyhole.
14) Is this a genuine Corbin Russwin part or an aftermarket plug?
Genuine OEM Corbin Russwin cylinder part, catalogued as a replacement part for commercial use. Aftermarket plugs are where tolerance problems show up on 7-pin stacks, so for an X Class cylinder the factory plug is the safer rebuild.
15) If a door only needs the look of a keyed cylinder with no function, is the 606K77 the part?
No. The 606K77 is a functioning 7-pin plug that operates a keyed mortise cylinder. Where a keyhole is needed for appearance only, a dummy cylinder such as the BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter fills the prep without keying.
16) Does the 606K77 come in a chrome finish, or do I need a different brand for that?
No need to change brands - the 606K77 plug is offered in 606 Satin Brass and 626 Satin Chrome, so it can be matched to existing trim on either warm or bright hardware sets.
17) What cylinder fits an Emtek handleset instead of the 606K77?
The 606K77 is a Corbin Russwin mortise cylinder plug and does not serve Emtek trim. For Emtek, the Emtek CY4 cylinder is sold each, and Medeco offers retrofit options including the 1065140, a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, and the 1065244, a 5-pin rim lazy motion cylinder with an Emtek tailpiece.
How fast can I get the Corbin Russwin 606K77 57B2 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 57B2 626 come with a warranty?
Absolutely. The Corbin Russwin 606K77 57B2 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 57B2 626?
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