Corbin Russwin 446F57-2 LFIC C...
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Corbin Russwin 446F57-2 LFIC Control Sleeve Cylinder Replacement Part for 8000 Core

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Model: 446F57-2

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

$33.50
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Corbin Russwin 446F57-2 LFIC Control Sleeve Cylinder Replacement Part for 8000 Core

The Corbin Russwin 446F57-2 is a precision-manufactured cylinder replacement part designed specifically as a Large Format Interchangeable Core (LFIC) Control Sleeve for use with the 8000 Core series. Purpose-built for commercial-grade cylinder systems, this component ensures the continued reliable operation of Corbin Russwin cylinder assemblies in high-demand environments. Engineered as a direct replacement part, it maintains the integrity and performance standards of the original cylinder configuration.

Key Features

  • LFIC Compatibility: Specifically designed as a Large Format Interchangeable Core (LFIC) control sleeve, ensuring seamless integration with compatible Corbin Russwin cylinder systems.
  • 8000 Core Series Fit: Engineered exclusively for the 8000 Core platform, providing a precise, reliable fit that maintains original cylinder performance specifications.
  • Direct Replacement Component: Serves as an exact replacement part for existing Corbin Russwin cylinder assemblies, minimizing downtime during maintenance or repair operations.
  • Commercial-Grade Construction: Built to the same quality standards as original Corbin Russwin cylinder components, supporting dependable operation in commercial door hardware applications.
  • Part Identification: Model number 446F57-2 provides clear identification for accurate ordering and inventory management within cylinder parts and accessories programs.

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: 446F57-2
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings requiring cylinder maintenance or repair
  • Educational Facilities managing large-scale keying system upkeep
  • Healthcare Institutions maintaining LFIC-based access control cylinder systems
  • Government and Municipal Buildings with 8000 Core cylinder installations
  • Hospitality Properties performing scheduled cylinder component replacement
  • Industrial and Warehouse Facilities servicing existing Corbin Russwin hardware
  • Multi-Tenant Residential and Mixed-Use Properties with commercial cylinder systems

Why Corbin Russwin 446F57-2?

Corbin Russwin cylinder parts are manufactured to precise tolerances, ensuring that replacement components like the 446F57-2 Control Sleeve restore original performance and security integrity to existing 8000 Core cylinder assemblies. Selecting a genuine Corbin Russwin replacement part eliminates compatibility concerns and supports the long-term dependability expected in commercial-grade door hardware 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:
446F57-2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 446F57-2 – Frequently Asked Questions

1) Will the 446F57-2 control sleeve work with Schlage or BEST interchangeable cores?
No. The 446F57-2 sleeve is built for the Corbin Russwin 8000 core platform only, and LFIC parts are not cross-brand. For Schlage interchangeable core work, the full size interchangeable core route is the Schlage 20-057 FSIC rim cylinder or the 20-057-C core in C keyway; on the BEST side, BEST small format cores like the 1C 5-pin or the 1CB 150 series run on their own housings entirely. Mixing brands at the core interface does not work.
2) I manage a building keyed on Corbin Russwin 8000 cores. Is this the right part to restore a cylinder that won't accept a core?
That's the intended use. When the control sleeve in an 8000 core housing is worn, damaged, or missing, the core won't seat or the control key won't pull it. The 446F57-2 is the genuine Corbin Russwin sleeve for that platform, so swapping it restores the original housing rather than forcing you to replace the whole cylinder and rekey the opening.
3) Is a BEST interchangeable core a substitute for the Corbin Russwin 446F57-2 control sleeve?
No. The Corbin Russwin 446F57-2 is a Large Format Interchangeable Core control sleeve, a replacement part for 8000 Core cylinder assemblies, not a keyed core itself. A BEST 1CB 150 Series interchangeable core cylinder or a BEST 1C Series standard 5-pin cylinder core is the keyed core that carries the pinning and the key. If a core has failed, one of those BEST cores is the type of item to look at; if the housing component that retains the core in a Corbin Russwin 8000 Core assembly is what is worn or missing, the 446F57-2 is the part.
4) Do I need a control key to install the 446F57-2 sleeve?
In practice, yes. The control sleeve is the part the control key acts on to insert and remove an LFIC core, so a locksmith servicing the housing works with the control key for that keying system. The 446F57-2 itself ships as the mechanical sleeve only, with no keys and no core included.
5) How do I make sure I order the right Corbin Russwin cylinder sleeve?
Order by the model stamped on the part: 446F57-2. That number identifies the LFIC control sleeve for the 8000 core, and there is a single configuration, so there are no finish, length, or keyway options to pick. Adjacent Corbin Russwin 446 numbers cover different sleeve variants, so match the digits exactly.
6) Is a mortise or rim cylinder an alternative if I don't want to repair the 8000 core housing?
It can be, if you're willing to step off the LFIC system at that door. A conventional cylinder such as the Detex MC65 mortise cylinder with a Schlage C keyway and 1-1/8 inch length, or a Schlage 20-021 rim cylinder with vertical tailpiece cam, gives you a keyed unit without interchangeable-core service. The trade-off is that you lose the ability to rekey by swapping cores, which is usually the whole reason a facility standardized on 8000 cores in the first place.
7) Will a Kaba Ilco universal replacement cylinder work in place of the Corbin Russwin 446F57-2?
They solve different problems. The Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder and the 1599 is a key-in-knob replacement cylinder, both complete keyed cylinders for knob and lever locksets. Ilco also builds the 1579 knob and lever cylinder specifically for Sargent locks. The Corbin Russwin 446F57-2 is a control sleeve component within a Large Format Interchangeable Core cylinder on the 8000 Core platform, so an Ilco key-in-knob cylinder does not drop into that role.
8) What mortise or rim cylinder do I order if the opening is not a Corbin Russwin 8000 Core interchangeable core job at all?
For conventional openings, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder in the Schlage C keyway, and Schlage offers the 20-021 rim cylinder with a vertical tailpiece cam and the 20-022 rim cylinder with a horizontal tailpiece cam, both 6-pin and supplied with 2 keys. Adams Rite also lists the 4036 mortise cylinder, a Grade 1 five-pin unit for doors from 1/2 inch thick. The Corbin Russwin 446F57-2 is a commercial replacement part for Corbin Russwin LFIC cylinder assemblies rather than a standalone keyed cylinder.
9) For a high-security or drill-resistant upgrade on an interchangeable core system, what is the alternative to a Corbin Russwin 8000 Core part?
The BEST 1CDF is a drill resistant patented interchangeable core in 7-pin brass, 150 Series, and the BEST 1CB is a Peaks 150 Series interchangeable core cylinder. Those are the route when the goal is to raise the security level of the core itself. The Corbin Russwin 446F57-2 control sleeve keeps an existing 8000 Core LFIC assembly functioning on its current keying platform and does not change the pinning or key control.
10) We are replacing cylinders on aluminum storefront and wood doors, not on Corbin Russwin 8000 Core hardware. What fits those?
Adams Rite covers those openings directly: the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws are both for the Adams Rite MS1847 deadlock and deadlatch, while the 4026 five pin tumbler cylinder pull is for the Adams Rite 5017 wood door deadlock and deadlatch. The Corbin Russwin 446F57-2 is tied to Corbin Russwin 8000 Core LFIC cylinder assemblies and has no role in those storefront or wood door applications.
11) Is the Corbin Russwin 446F57-2 a commercial or residential part?
Commercial. It's a component of Corbin Russwin's commercial mechanical lock line, used in offices, schools, hospitals, government buildings, hotels, and multi-tenant properties running LFIC keying systems. Residential deadbolt and knob cylinders use entirely different retrofit parts, such as the Kaba Ilco 1539 key-in-knob/lever universal cylinder or the 1549 key-in-deadbolt cylinder.
12) Does a dummy cylinder work where the Corbin Russwin 446F57-2 is used?
No. The BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter fills a cylinder hole where no keyed function is needed. The Corbin Russwin 446F57-2 is a working control sleeve inside a Large Format Interchangeable Core assembly on the 8000 Core platform, so a dummy rim cylinder serves a trim purpose rather than replacing that part.
13) Can I use a Medeco retrofit cylinder instead of the Corbin Russwin 446F57-2?
Only if the opening is a residential-style deadbolt or handleset rather than a commercial LFIC assembly. Medeco's retrofit line includes the 1012040 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handlesets and deadbolts, the 1065244 5-pin lazy motion rim cylinder with Emtek tailpiece, and the 1075127 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. The Corbin Russwin 446F57-2 is a commercial part for Corbin Russwin 8000 Core cylinder assemblies.
How fast can I get the Corbin Russwin 446F57-2 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 446F57-2 come with a warranty?
Absolutely. The Corbin Russwin 446F57-2 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 446F57-2?
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
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