Schlage Commercial 20-061 6-Pin FSIC Mortise Cylinder
The Schlage 20-061 is a 1-1/2" full size interchangeable core (FSIC) mortise cylinder for commercial applications. It ships as a complete kit including a straight cam, compression ring, spring, 3/8" blocking ring, and 2 keys. The cylinder is non-handed and constructed of brass.
Compatibility
- Fits Schlage L-series mortise locks, specifically the L9060 exterior
- Integrates with existing conventional cylinder systems via shared Schlage keyway families
- Available in multiple Schlage keyways (C, C123, C124, C125, C134, C135, C145, C234, CE, E, EF, F, FG, G, P, S123, S124, S125, S134, S135, S145, S235, ICA, ICB, ICC, ICX construction keyways)
Kit Contents
- 6-pin FSIC mortise cylinder body
- Straight cam
- Compression ring
- Spring
- 3/8" blocking ring
- 2 keys
Cylinder Specifications
- Cylinder type: Full Size Interchangeable Core (FSIC), 6-pin
- Length: 1-1/2"
- Plug diameter: 1/2" (industry standard)
- Material: Brass
- Handing: Non-handed
- Commercial use
- Warranty: 3 years
Key System Features
- Quick core removal for fast rekeying without disassembling the lock
- Shared keyway families allow integration into an existing conventional cylinder system
- Available in construction keyways (ICA, ICB, ICC, ICX) for temporary access during construction
Available Finishes
- 606 Satin Brass
- 612 Satin Bronze
- 613 Oil Rubbed Bronze
- 622 Matte Black
- 625 Bright Chrome
- 626 Satin Chrome
Downloads
Manufacturer Resources
Product Specs
- Features:
- Cores are Based on the Industry Standard Plug Diameter of 1/2", Quick and Convenient When Rekeying is Required, Shared Keyway Families Allows Integration Into An Existing Conventional Cylinder System
- Warranty:
- 3 Year
- Product Group:
- Parts and Accessories
- Subcategory:
- Parts and Accessories
- Product Subgroup:
- Cylinders
- Product Type:
- Cylinders
- Keys Included:
- 2
- Commercial/Residential:
- Commercial
- Cylinder and Keyways:
- Full Size Interchangeable Core, 6-Pin
- Lock Type:
- Mortise
- Compatibility:
- Schlage L Mortise Locks L9060 Exterior
- Parts and Accessories Type:
- Replacement Parts
- Product Attribute:
- Parts and Accessories
- Product Model:
- 20-061
- Product Function:
- FSIC Core
- Door Hand Direction:
- Non-Handed
- Product Category:
- Mechanical Locks
- Product Substrate:
- Brass
- Department:
- Door Hardware
Schlage 20-061 ICC 626 – Frequently Asked Questions
1) What is a full size interchangeable core cylinder and why would I want one on my building?
An FSIC cylinder lets you pull the core with a control key and drop in a new one, so rekeying a door takes seconds instead of disassembling the lock. The 20-061 uses cores built on the industry standard 1/2 inch plug diameter, and its keyway families let it drop into an existing conventional cylinder system rather than forcing a separate key system. For a property manager or facility with turnover, that's the difference between a locksmith call and a maintenance tech swapping a core in the hallway.
2) What keyway do I order so the new cylinder works on my existing Schlage master key system?
Order the keyway that matches your system. The 20-061 is available in C, CE, E, EF, F, FG, G and P keyways, in the C-series sections C123, C124, C125, C134, C135, C145 and C234, and in the S-series sections S123, S124, S125, S134, S135, S145 and S235. All of those come 1 bitted, meaning uncut, so your locksmith pins and cuts them to your existing system. There are also ICA, ICB, ICC and ICX construction keyways, which ship with 0 keys and are meant to be used during construction and then swapped out at turnover.
3) I need several doors on one key. Can I order these Schlage mortise cylinders keyed alike?
Yes. Keying is a required choice on the 20-061: keyed different is the standard, keyed alike is available for running multiple locks on one key, and there is a none option if you want the lock supplied less cylinder. If you are matching an existing key code, there is a key code field to enter it on the order.
4) Is there an interchangeable core mortise cylinder that fits a Schlage L9000 lock but isn't Schlage brand?
There is, if you want an LFIC rather than a full size core. The Corbin Russwin 1080 Grade 1 is a 1-1/2 inch LFIC mortise cylinder, 6-pin, listed for Schlage L9000 mortise locks with an A01 Schlage L cam. The difference matters: the Schlage 20-061 takes a full size interchangeable core on the 1/2 inch industry standard plug, while the Corbin Russwin 1080 takes a small format core, so the two do not share cores or control keys. Match whichever core format your building already uses.
5) My building runs BEST interchangeable cores. Will a Schlage FSIC core drop into my system?
No. Schlage full size interchangeable core and BEST small format core are different core formats and don't interchange, so the 20-061 won't accept a BEST core and your BEST control key won't pull it. If you're standardizing on BEST, stay in that family, for example the 1C Series standard 5-pin core or the 1CB Peaks 150 Series interchangeable core. The 20-061 is the right call only if your program is Schlage FSIC on the 1/2 inch standard plug.
6) Will the Schlage 20-061 mortise cylinder work in an aluminum storefront deadlock?
Storefront deadlocks are a separate family. Adams Rite builds the 4036 mortise cylinder with five-pin security, Grade 1, to a 1/2 inch minimum door thickness, which is the range narrow aluminum stiles live in. For MS1847 deadlock and deadlatch systems Adams Rite offers the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws; the 4026 five pin tumbler cylinder pull is the wood door version for the 5017 deadlock and deadlatch. The Schlage 20-061 is built for Schlage L series mortise locks, so specify the Adams Rite part when the opening is a storefront rather than a hollow metal or wood door with an L series case.
7) Does the Schlage 20-061 cylinder come with keys?
Two keys come with the cylinder on the standard keyed versions. The keyway options are supplied 1 bitted, so the cylinder arrives uncut and gets pinned and cut to your system; the construction keyways (ICA, ICB, ICC, ICX) ship with no keys because they are meant to be pulled at turnover.
8) Is handing an issue when ordering a mortise cylinder for a left hand door?
No. The 20-061 mortise cylinder is non-handed, so the same part goes into a left hand or right hand opening. What you do have to get right is the cam, which is set by the lock brand and series, and the keyway, which is set by your key system.
9) What's the difference between a mortise cylinder and a rim cylinder, and how do I know which one my lock takes?
A mortise cylinder threads into the lock body and turns a cam to drive the lock; a rim cylinder mounts through the door with a tailpiece that reaches a surface-mounted device on the other side. The 20-061 is the mortise version, supplied with a straight cam. If your device is rim mounted, you want a rim housing instead, such as the Corbin Russwin 3070 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. The Schlage modular cylinder itself converts between mortise, rim and key-in-lever or key-in-knob by changing the tailpiece, cam or rear housing.
10) I just need a plain keyed mortise cylinder, not an interchangeable core. What should I buy instead?
If you're not running an IC core program, a conventional mortise cylinder is simpler and there's nothing to gain from the 20-061's removable core. The Corbin Russwin 1000 Grade 1 mortise cylinder is a 1-1/2 inch conventional with an A02 straight cam, and the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder cut to the Schlage C keyway, which is useful if your building already keys to Schlage C but you want a shorter conventional cylinder. The 20-061 earns its keep only where you plan to rekey by pulling cores.
11) Does this cylinder work with Everest 29 or Primus XP keys, or only Classic?
All three. The Schlage modular cylinder supports interchangeability between Everest 29, Primus XP and Classic key systems, so a building partway through a migration from Classic to Everest 29 can stock one cylinder line. The front housing comes in all finishes to match the locks, so the cylinder doesn't force a finish break across the openings.
12) What cylinder replaces the Schlage 20-061 when the exit device takes a rim cylinder rather than a mortise cylinder?
A mortise cylinder threads into the lock case and turns a cam; a rim cylinder mounts behind the door face and drives a tailpiece, so the Schlage 20-061 will not serve a rim application no matter which cam is selected. For rim openings the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. The BEST 12E series dummy rim cylinder, at 1-5/32 inch diameter, is the non-operating filler for a rim prep where no key function is wanted. Confirm the tailpiece length against the device before ordering.
13) Which cylinder should be ordered for a lever or knob lock instead of the Schlage 20-061?
The 20-061 is a mortise cylinder and will not fit a key-in-lever or key-in-knob prep. For those openings the Falcon A23161-05 G is a key-in-lever cylinder, 6-pin in the G keyway, keyed different with two cut keys. Kaba Ilco offers the 1539 key-in-knob and lever universal cylinder, the 1579 knob and lever cylinder for Sargent, and the 1599 key-in-knob replacement cylinder. If the goal is to keep one key system across mortise and lever openings, note that the 20-061 is offered in the G keyway as well.
14) For a facility standardizing on one key system across mortise, rim and lever openings, how does the Schlage 20-061 compare with ordering separate cylinders per lock type?
The Schlage modular platform behind the 20-061 lets one cylinder convert to three cylinder types by changing the tailpiece, cam or rear housing, with six rear housing lengths for thicker doors and front housings in finishes that match the locks, and it supports interchangeability between Everest 29, Primus XP and Classic key systems. The alternative is a dedicated part per prep - a Corbin Russwin 3070 rim cylinder housing for exit devices, a Kaba Ilco 1539 universal key-in-knob and lever cylinder for lever locks - each stocked and keyed on its own. The modular route reduces the number of distinct part numbers held; the dedicated route means each part arrives ready for its prep with no conversion at the door.
15) What finishes does the Schlage 20-061 mortise cylinder come in to match my existing lock trim?
Six finishes: 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 622 matte black, 625 bright chrome and 626 satin chrome. 626 satin chrome is the one that matches most commercial Schlage lock trim already in the field, and 613 or 622 are the ones to pick if you're blending into darker residential-look hardware in a multifamily building.
16) What material is the Schlage 20-061 cylinder, and is it OK on an exterior door?
Brass, and it's a commercial-rated part listed for Schlage L9060 exterior mortise locks, so exterior use is what it's specified for. Brass is the standard cylinder material because it machines to tight tolerance for pinning and doesn't rust in the door.
17) What is the difference between the Schlage 20-061 and a Medeco retrofit cylinder for a residential deadbolt?
The Medeco parts in this class are rim type retrofit cylinders for residential hardware: the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065140 is a 5-pin retrofit for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder, the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Emtek also lists the CY4 cylinder as a parts item. The Schlage 20-061 is a commercial mortise cylinder for a mortise lock case, so it is not a swap for any of those tailpiece-driven deadbolt applications.
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Absolutely. The Schlage 20-061 ICC 626 is backed by a manufacturer’s warranty.
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