Schlage Commercial 21-003-168 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$143.00
$26.32
Schlage Commercial 21-003-168 6-Pin Standard Key-in-Knob Cylinder for Schlage A85/H185 Orbit Knobs

Schlage Commercial 21-003-168 6-Pin Standard Key-in-Knob Cylinder for Schlage A85/H185 Orbit Knobs

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Model: 21-003-168 C 626
$143.00
$26.32
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$143.00
$26.32
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Schlage Modular Cylider Overview

One cylinder is the foundation for every lock you need, add more flexibility with less inventory dollars, and make your job easier, faster and more profitable.
Now you can service almost any lock on any door with just one cylinder. Simply by adding or changing the front and back housing you can convert a modular cylinder into multiple cylinder types, including mortise, rim and key-in-lever. The revolutionary Schlage® Modular cylinder will dramatically reduce your inventory because you will be able to make almost any cylinder type from a series of modular components and parts.
Now, one cylinder changes everything.

Our modular cylinder is the foundation for every lock you neeS

  • One cylinder converts to three differnt cylinder types by changing the tailpiece, cam or rear housing
  • Accomadates thicker doors with six available lengths of rear housing sizes
  • Front housing available in all finishes to match the locks
  • Supports interchangeability between Everest 29™, Primus®XP, and Classic key systems
  • Fewer parts required to fill orders means less inventory and lower costs
  • Never be caught on the job without the right part

One cylinder really does fit all

Thanks to the extraordinary versatility of the Schlage® modular cylinder you’ll never be caught on the job again without the right part. You’ll be able to assemble almost any Schlage cylinder on the spot, while providing your customers the same security, toughness and quality that has made Schlage one of the best names in the business.

  • Adaptable to mortise, rim and key-in-lever or key-in-knob applications
  • Available in all Schlage keyways, including Everest 29TM and Primus® XP


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Schlage Key Systems, Cylinders and Keys Catalog

Manufacturer Resources

Product Specs

Features:
Accept any Schlage Keyway, Fits all Schlage Locksets and Deadbolts
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:
6-Pin
Compatibility:
Schlage A85/H185 Orbit Knobs
Handle Type:
Knob
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Model:
21-003-168
Product Function:
Cylindrical Lever Cylinder
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Product Substrate:
Brass, Stainless Steel
Department:
Door Hardware

Schlage 21-003-168 C 626 – Frequently Asked Questions

1) My knobs are not Schlage. Will the 21-003-168 cylinder fit them?
Fit is specific to Schlage A85 and H185 Orbit knobs, so no. For Sargent knobs and levers, the Kaba Ilco 1579 is the knob and lever cylinder built for them. The Kaba Ilco 1599 is a key-in-knob replacement cylinder, and the Ilco 1539 is a universal key-in-knob and lever cylinder, both worth checking against the lockset you are actually working on before you order.
2) Does the Schlage 21-003-168 cylinder come keyed, or do I have to have keys cut for it?
Every keyway option on the 21-003-168 is supplied 0-bitted, so the plug arrives uncut and a locksmith pins and cuts it to your key. Two keys ship with it. That is the setup you want when the door has to join a system that already exists. If you would rather have a cylinder that works out of the box, the Falcon A23161-05 G key-in-lever cylinder comes keyed different with two cut keys.
3) Which Schlage keyway do I order for a 21-003-168 key-in-knob cylinder?
Match the keyway to the keys already in service at the property. The 21-003-168 is offered in the lettered sections C, CE, E, EF, F, FG and G, and in numbered sections including C123, C124, C125, C134, C135, C145, C234, C245, C345, S124, S125, S134, S135, S145, S235, S245 and S345. All are 6-pin, and the cylinder supports Everest 29, Primus XP and Classic key systems, so a facility on a restricted section can stay on it.
4) How do I get a Schlage Orbit knob cylinder in a finish that matches the knobs I already have?
Order the cylinder finish to match the knob it drops into. Four are available: 626 satin chrome, 606 satin brass, 622 matte black and 643E aged bronze. 626 is the finish most commercial openings are specified in, so it is the safe default when a building is mixed and you are standardizing. The cylinder face is the visible piece once it is in the knob, so a mismatch shows on a lobby or office door.
5) Do I have to specify handing when ordering a Schlage 21-003-168 cylinder?
No handing to call out. The 21-003-168 is non-handed, so the same part goes into a left hand or a right hand Orbit knob and one shelf stock covers both. Keyway and finish are the only two choices on the order.
6) Can I key a whole building of Schlage Orbit knobs alike with these cylinders?
That is the usual reason to buy them uncut. Because every 21-003-168 is 6-pin, ships 0-bitted, and is available in any Schlage keyway, a locksmith can key them alike, key them different, or pin them into the master levels already running in the building. Keep the entire order on a single keyway section if one key across the property is the goal.
7) Is the Schlage 21-003-168 cylinder built for commercial traffic or is it a residential part?
Commercial. The 21-003-168 is a brass and stainless steel key-in-knob cylinder listed as a commercial part, matching the A85 and H185 Orbit knobs it serves, which are commercial knobs. For an apartment turn or an MRO cart, that is the construction you want on a door that gets rekeyed repeatedly.
8) Our doors are keyed on a Schlage keyway but one opening has a mortise lock. Does the same knob cylinder go in it?
No, a mortise lock needs a threaded mortise cylinder body, which is a different part from the Schlage 21-003-168 key-in-knob cylinder for A85/H185 Orbit knobs. Staying on a Schlage keyway, the Detex MC65 is a mortise cylinder with a Schlage C keyway, 1-1/8 inch, 6-pin, commercial grade. The Corbin Russwin 1080 in a 1-1/2 inch length is a 6-pin LFIC mortise cylinder for Schlage L9000 mortise locks with an A01 Schlage L cam, and the Corbin Russwin 1000 Grade 1 Series mortise cylinder at 1-1/2 inch uses an A02 straight cam. All of those match the 21-003-168 on pin count at six pins; what changes is the body format and, on the mortise parts, the cam you specify.
9) What cylinder do I use for a rim exit device instead of a key-in-knob cylinder?
A rim cylinder is the part for that, and the 21-003-168 is not one. It only serves Schlage A85 and H185 Orbit knobs. For a rim device, the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. Tailpiece length is what drives whether it reaches the device through the door, so measure the door and check what the device calls for.
10) Can I get an interchangeable core instead so my maintenance staff can rekey without a locksmith?
Not with the 21-003-168. It is a conventional 6-pin key-in-knob cylinder that has to be pinned to change a key. If control-key rekeying is what the facility needs, look at the BEST 1C standard 5-pin cylinder core, the BEST Peaks 1CB 150 Series interchangeable core cylinder, or the BEST 1CDF, a drill resistant 7-pin brass core in the 150 Series. All of those require hardware prepped to accept an interchangeable core, which is a different lock, not a different cylinder.
11) Is there a key-in-knob cylinder from another manufacturer that does the same job as the Schlage 21-003-168?
The Schlage 21-003-168 is a 6-pin key-in-knob cylinder built to fit Schlage A85 and H185 Orbit knobs, and it will accept any Schlage keyway. Kaba Ilco covers the same key-in-knob job from a different direction: the 1539 Series is a universal key-in-knob and lever cylinder, and the 1599 is a key-in-knob replacement cylinder. The distinction is scope. The 21-003-168 is cut for the Schlage A85/H185 Orbit knob and stays inside the Schlage key system, while the Ilco 1539 is built as a universal knob and lever cylinder rather than being tied to one maker's knob. If the knobs you are servicing are Schlage Orbit and the building is keyed on a Schlage keyway, the 21-003-168 is the direct match; the Ilco parts are what you reach for when the knob is something else.
12) The trim on my opening is a lever, not a knob. What do I order instead of the Schlage 21-003-168?
The Schlage 21-003-168 is a knob-type cylinder made for Schlage A85/H185 Orbit knobs, so lever trim needs a key-in-lever cylinder instead. The Falcon A23161-05 G is a key in lever cylinder in the RU/T Series with a 6-pin G keyway, keyed different, supplied with two cut keys. Kaba Ilco's 1539 Series covers both formats as a key-in-knob and lever universal cylinder. Pin count is the same across all three at six pins, and the 21-003-168 also comes with two keys, but the keying state differs: the Schlage cylinder is ordered 0 bitted so you pin it to the building's key system at the bench, while the Falcon arrives keyed different with keys already cut.
13) A Kaba Ilco 1549 came up when I searched for a knob cylinder. Is it the same part as the Schlage 21-003-168?
No, those two serve different lock bodies. The Ilco 1549 Series is a key-in-deadbolt cylinder and its function is listed as deadbolt, so it goes into a deadbolt, not into knob trim. The Schlage 21-003-168 is a 6-pin key-in-knob cylinder for Schlage A85/H185 Orbit knobs. The Ilco 1579 is another one worth separating out: it is a knob and lever cylinder made for Sargent, so it matches the knob format but not the Schlage hardware. If what you are replacing is the cylinder inside a Schlage Orbit knob, the 21-003-168 is the part; the 1549 and 1579 answer different openings.
14) I am keying a building alike and one door takes a rim cylinder. What pairs with the Schlage knob cylinder on that opening?
The Schlage 21-003-168 is the knob-side part, a 6-pin cylinder for Schlage A85/H185 Orbit knobs that accepts any Schlage keyway. A rim application takes a rim housing with a tailpiece: the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece, so it matches on pin count and gives you the rim format the knob cylinder does not have. The Medeco 1012040 is a 6-pin lazy motion rim cylinder built for Kwikset single cylinder deadbolts, which is a rim body aimed at a specific deadbolt rather than a general rim housing. Confirm tailpiece length against the device you are mounting to, since that dimension is what makes a rim cylinder fit or not.
15) We standardize our facility on interchangeable cores. How does the Schlage 21-003-168 compare to an IC setup?
The Schlage 21-003-168 is a standard 6-pin key-in-knob cylinder, commercial rated, for Schlage A85/H185 Orbit knobs, and it is not an interchangeable core part. On the IC side, the BEST Peaks 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill resistant preferred patented interchangeable core in 7-pin brass, also 150 Series, and the BEST 1C5 is a standard 5-pin cylinder core. The practical difference for a facility program is the service model: an IC housing takes a core that is pulled and swapped as a unit, while the 21-003-168 is a fixed 6-pin cylinder assembled into the Orbit knob. Pin counts differ across the BEST parts too, at seven pins on the 1CDF and five on the 1C5, so a standardization decision needs to name the pin count as well as the format.
16) The opening is an aluminum storefront door with an Adams Rite deadlock. Is a Schlage knob cylinder any use there?
No, that is a different hardware family. The Schlage 21-003-168 keys a Schlage A85 or H185 Orbit knob and is a knob-type cylinder. For an Adams Rite MS1847 deadlock system the cylinder pulls are the parts to look at: the 4024 is a cylinder pull with trim plate mounting for MS1847 deadlock systems, and the 4025 is a five pin tumbler cylinder pull with through-screws for the same deadlock. If the door is wood rather than aluminum, the Adams Rite 4026 is a five pin tumbler cylinder pull for the 5017 wood door deadlock/deadlatch. Where the storefront device takes a mortise cylinder instead of a pull, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder in the 4036 Series with a 1/2 inch minimum door thickness.
17) Our portfolio mixes Schlage commercial knobs with Kwikset and Emtek residential hardware. Can one cylinder cover all of it?
Not with a single part, because each hardware family takes its own cylinder body and tailpiece. The Schlage 21-003-168 is the commercial piece: a 6-pin cylinder for Schlage A85/H185 Orbit knobs that accepts any Schlage keyway and ships with two keys. For Kwikset single cylinder deadbolts, the Medeco 1012040 is a 6-pin lazy motion rim cylinder. For Emtek, the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece, the Medeco 1065140 is a 5-pin retrofit that covers the Arrow JL interconnected lock and the Emtek handleset and deadbolt outside cylinder, and Emtek itself lists the CY4 cylinder. Plan the fleet as one cylinder type per hardware family rather than one part number across the whole portfolio.
18) Does pin count matter when I swap one cylinder for another, or is a five pin part close enough to a six pin?
Pin count is part of the identity of the cylinder and has to match the key system you are pinning into. The Schlage 21-003-168 is a 6-pin key-in-knob cylinder for Schlage A85/H185 Orbit knobs, with a brass and stainless steel build and non-handed so it does not need to be specified left or right. Other six pin parts in the same conversation include the Detex MC65 mortise cylinder with Schlage C keyway at 1-1/8 inch and the Corbin Russwin 3070 rim cylinder housing with a 1-7/8 inch tailpiece. Five pin parts are a separate key-system decision: the Adams Rite 4025 and 4026 are five pin tumbler cylinder pulls, the Adams Rite 4036 is a five-pin mortise cylinder, the BEST 1C5 is a 5-pin core, and the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Match the pin count first, then the body format.
19) One door in the run is inactive and never gets keyed. Do I still order a keyed cylinder for it?
No, an inactive leaf takes a dummy part rather than a keyed one. The Schlage 21-003-168 is a keyed 6-pin cylinder supplied with two keys, built for Schlage A85/H185 Orbit knobs, so ordering it for an opening that is never keyed puts a working cylinder where you do not need one. The BEST 12E Series dummy rim cylinder, at 1-5/32 inch diameter, is the dummy counterpart in a rim format. Keep the keyed 21-003-168 for the active openings on the Orbit knobs and specify the dummy separately by the diameter the trim requires.
How fast can I get the Schlage 21-003-168 C 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 Schlage 21-003-168 C 626 come with a warranty?
Absolutely. The Schlage 21-003-168 C 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 Schlage 21-003-168 C 626?
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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