Schlage S605-241 Retainer for S200 Series FSIC Cylinders
The Schlage S605-241 is a genuine OEM replacement retainer engineered specifically for use with S200 Series Full Size Interchangeable Core (FSIC) cylinder applications. Designed as a precision-fit commercial-grade component, this retainer ensures proper cylinder retention and reliable lock function within compatible S200 Series lock assemblies. As an authentic Schlage part, it maintains the mechanical integrity and performance standards expected in professional commercial door hardware installations.
Key Features
- Genuine OEM Replacement Part: Authentic Schlage component manufactured to original specifications, ensuring proper fit and function within S200 Series FSIC lock assemblies.
- S200 Series FSIC Compatibility: Engineered specifically for use with Schlage S200 Series Full Size Interchangeable Core (FSIC) cylinders, providing a precise and secure fit.
- Commercial-Grade Construction: Built to the durability and performance standards required for demanding commercial door hardware applications.
- Cylinder Retention Function: Provides reliable mechanical retention of the interchangeable core cylinder, maintaining proper lock alignment and operation.
- Direct Replacement Design: Serves as a direct drop-in replacement retainer, simplifying servicing and maintenance of existing S200 Series installations without full hardware 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: S605-241
- Features: Schlage Parts
Typical Applications
- Commercial Office Building Lock Maintenance and Cylinder Servicing
- Educational Facility Key Control and FSIC System Upkeep
- Healthcare Institution Interchangeable Core Lock Repairs
- Government and Municipal Building Hardware Maintenance
- Hospitality and Multi-Tenant Property Cylinder Replacement Programs
- Industrial and Warehouse Facility Lock Servicing
- Institutional Security System Maintenance and Refurbishment
Why Schlage S605-241?
The Schlage S605-241 retainer delivers the precision fit and reliable mechanical performance that commercial facility managers and locksmiths depend on when servicing S200 Series FSIC lock systems. As a genuine Schlage replacement part, it upholds the engineering standards built into the original hardware, ensuring continued operation without compromise. For professionals maintaining commercial-grade keying systems, sourcing authentic components like this retainer is essential to preserving the security and longevity of the overall installation.
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:
- S605-241
- Features:
- Schlage Parts
Schlage S605-241 – Frequently Asked Questions
1) What does the Schlage S605-241 retainer actually do in an S200 Series lock?
The S605-241 is the retainer that holds a full size interchangeable core in place inside Schlage S200 Series cylinder applications. It keeps the core mechanically captive so the cylinder stays aligned and the lock operates as intended. It is a service part, not a cylinder or a core, so it does not include a key or a plug.
2) Will the S605-241 work with small format interchangeable cores?
No. The S605-241 retainer is built for full size interchangeable core (FSIC) use in Schlage S200 Series assemblies. Small format cores are a different core geometry entirely, so this retainer is the wrong part for an SFIC housing. If you are servicing an SFIC system, look at a small format core line such as the BEST 1C Series 5-pin core instead of this retainer.
3) Can I replace just the retainer instead of the whole S200 cylinder assembly?
Yes, that is the point of the part. The S605-241 is a drop-in replacement retainer, so a locksmith or maintenance tech can restore core retention on an existing S200 Series installation without pulling and replacing the full lock or cylinder. Useful when a core keeps working loose but the lock body and keying are fine.
4) Is the Schlage S605-241 a replacement core, or just the part that holds the core in?
The S605-241 is a retainer - a replacement part that mechanically retains a Full Size Interchangeable Core within S200 Series lock assemblies. It is not a keyed cylinder and carries no keyway or pin stack. If what you actually need is a keyed interchangeable core, that is a different item class entirely: the BEST 1C Series standard 5-pin cylinder core or the BEST Peaks 1CB 150 Series interchangeable core cylinder are keyed cores, while the S605-241 is the retention hardware around one.
5) My lock takes a mortise cylinder, not an interchangeable core - what should I order instead of the S605-241?
The S605-241 retainer only applies to S200 Series FSIC assemblies, so it will not serve a mortise cylinder prep. For a mortise application, look at the Corbin Russwin 1000 Grade 1 Series mortise cylinder in 1-1/2 inch length with an A02 straight cam, the Corbin Russwin 1070 Grade 1 Series 1-1/4 inch 6-pin mortise housing with an A01 cloverleaf cam, or the Detex MC65 mortise cylinder in Schlage C keyway, 1-1/8 inch, 6-pin. Confirm cylinder length and cam style against the lock body before ordering.
6) Is the S605-241 a genuine Schlage part or an aftermarket copy?
It is a genuine Schlage OEM component, made to the original specification for S200 Series FSIC assemblies. For facilities that standardize on Schlage keying, using the OEM retainer keeps the core fit consistent across every opening rather than mixing tolerances from a substitute part.
7) I need a replacement cylinder, not a retainer. What should I be looking at?
The S605-241 is only the retention hardware for an S200 Series core, so it will not solve a worn or wrong-keyway cylinder. For a mortise cylinder that works with Schlage L9000 mortise locks, the Corbin Russwin 1080 Series 1-1/2 inch LFIC 6-pin cylinder with the A01 Schlage L cam is the piece to look at. If you need a Schlage C keyway mortise cylinder, the Detex MC65 is a 1-1/8 inch 6-pin option.
8) Does buying the S605-241 get me a core or keys as well?
No. It is the retainer alone, a single service piece for S200 Series FSIC applications. The interchangeable core, the keys and the keying are ordered separately. Budget for the core if you are also changing key control on that opening.
9) Will a rim cylinder work in place of the S200 core the S605-241 retains?
Rim cylinders mount through the door face and drive an exit device or rim lock by tailpiece, which is a different prep from the S200 FSIC core the S605-241 retains. If the opening is actually rim, the Corbin Russwin 3070 6-pin rim cylinder housing with a 1-7/8 inch tailpiece and the BEST 12E Series dummy rim cylinder at 1-5/32 inch diameter are rim-format parts. Check the tailpiece length against the device before substituting.
10) For a key-in-lever or key-in-knob cylinder swap, is the S605-241 the right part?
It is not. The S605-241 is a commercial replacement retainer for S200 Series FSIC assemblies and does nothing in a standard key-in-knob or key-in-lever chassis. For those, the Kaba Ilco 1539 Series key-in-knob and lever universal cylinder, the Kaba Ilco 1599 key-in-knob replacement cylinder, or the Falcon A23161-05 G key-in-lever cylinder in RU/T Series 6-pin G keyway, keyed different with two cut keys, are the cylinder-level parts to look at.
11) Is there a higher-security cylinder option if I am rebuilding the opening rather than just replacing the S200 retainer?
The S605-241 is a maintenance part that keeps an existing S200 FSIC installation in service without replacing hardware. If the goal is to upgrade the cylinder itself, the BEST 1CDF is a drill resistant preferred patented interchangeable core in 7-pin brass, 150 Series, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder with a 1/2 inch minimum door thickness. Those are cylinder replacements rather than retainer replacements, so the lock prep decides which path applies.
12) My aluminum storefront deadlock needs a cylinder - does a Schlage S200 part fit it?
No. The S605-241 retainer is specific to S200 Series FSIC lock assemblies and has no application in an aluminum storefront deadlock. For MS1847 deadlock and deadlatch systems, the Adams Rite 4024 cylinder pull mounts with a trim plate and the Adams Rite 4025 is a five pin tumbler cylinder pull with through-screws. For a wood door deadlock, the Adams Rite 4026 five pin tumbler cylinder pull is built for the 5017 wood door deadlock and deadlatch.
13) Is this retainer rated for commercial door hardware or is it a residential part?
Commercial. The S605-241 is classified as a commercial door hardware replacement part and is used on the kind of S200 Series FSIC systems found in offices, schools, hospitals, government buildings, hotels and warehouses where key control is managed across many openings.
14) I manage residential handleset and deadbolt hardware - is the S605-241 usable on those doors?
The S605-241 is a commercial-grade part for S200 Series FSIC lock assemblies, so it has no role in a residential handleset or deadbolt. For those openings, the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, and the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece.
15) What is the difference between ordering the S605-241 and ordering a retrofit cylinder for another maker's lock?
The S605-241 is an OEM Schlage part made to original specification for S200 Series FSIC assemblies, so it is a same-brand service item rather than a cross-brand adaptation. Retrofit cylinders work the other direction: the Medeco 1065140 is a 5-pin retrofit cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, the Kaba Ilco 1579 knob and lever cylinder is built for Sargent, and the Emtek CY4 cylinder is sold as a single-piece part. Those adapt one brand's cylinder into another brand's chassis; the S605-241 keeps a Schlage assembly original.
16) Can I use the S605-241 on a key-in-deadbolt application?
No - it is the retainer for S200 Series FSIC cylinder assemblies and does not serve a deadbolt cylinder function. The Kaba Ilco 1549 Series key-in-deadbolt cylinder is the deadbolt-function part, and the Kaba Ilco 1539 and 1599 Series cylinders are also listed with a deadbolt function. Match the part to the chassis prep rather than swapping between the two families.
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Does the Schlage S605-241 come with a warranty?
Absolutely. The Schlage S605-241 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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