Medeco 200901 6-Pin Single Cyl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$177.00
$149.11
Medeco Medeco 200901- 6 Pin Single Cylinder Deadbolt for Arrow D & E Series, Sargent 470 & 480 MED-200901

Medeco 200901 6-Pin Single Cylinder Deadbolt for Arrow D & E Series and Sargent 470 & 480

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Model: 200901T-26-DLT
$177.00
$149.11
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$177.00
$149.11
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Medeco 200901 6-Pin Single Cylinder Deadbolt for Arrow D & E Series and Sargent 470 & 480

The Medeco 200901 is a 6-pin Key-in-Knob/Lever retrofit cylinder engineered to replace cylinders in Arrow D & E Series locksets as well as Sargent 470 & 480 series hardware. Constructed of durable machined brass components, this commercial-grade cylinder delivers Medeco's renowned key control and physical security in a drop-in retrofit format. Certified to ANSI A156.30 Level A for patent-protected key control and ANSI A156.5 Grade 1 for consistent quality in heavy-use applications, the 200901 is an ideal upgrade for facilities requiring enhanced access security without full lockset replacement.

Key Features

  • 6-Pin Cylinder Configuration: Features a 6-pin tumbler design for enhanced pick resistance and key control security in commercial applications.
  • Retrofit Compatibility: Designed to retrofit Arrow D & E Series knob and lever cylindrical locksets and Sargent 470 & 480 series hardware, enabling security upgrades without full lockset replacement.
  • Machined Brass Construction: Cylinders are constructed of durable machined brass components for long-lasting performance in demanding commercial environments.
  • UL 437 Listed (M4): Medeco M4 Key-in-Knob cylinders are UL437 listed for drill and pick resistance, providing verified physical security performance.
  • Patent-Protected Key Control: Utility patent-pending key control technology restricts unauthorized key duplication, supporting controlled access management.
  • Broad Retrofit Range: Medeco offers over 100 different cylinder designs and tailpiece configurations, providing the largest retrofit capability in the industry and reducing the need for complete lockset replacements.
  • Multiple Finish Options: Available in 14 finishes including Bright Brass, Satin Brass, Antique Brass, Oil Rubbed Bronze, Satin Nickel, Bright Chrome, Satin Chrome, Dark Bronze, and more to match existing hardware aesthetics.

Certifications & Compliance

  • ANSI A156.30 Level A — Patent-protected key control and physical strength (M4, M3)
  • ANSI A156.5 Grade 1 — Consistent quality for heavy-use applications (M4/M4 BiLevel, M3)
  • UL 437 Listed — Drill and pick resistance (M4 cylinders)

Technical Specifications

  • Product Family: Key-in-Knob/Lever Cylinder
  • Pinning: 6-Pin
  • Compatible Hardware: Arrow D & E Series, Sargent 470 & 480
  • Certification: UL 437 Listed; ANSI/BHMA A156.30 (M4); ANSI/BHMA A156.5 Grade 1 (M4)
  • Construction: Durable machined brass components
  • Warranty: 2-year manufacturer's warranty

Typical Applications

  • Commercial Office Buildings Requiring Key Control Upgrades
  • Educational Facilities with Existing Arrow or Sargent Locksets
  • Healthcare Institutions Upgrading Cylinder Security
  • Retail Establishments Seeking Restricted Key Duplication
  • Government and Municipal Buildings
  • Multi-Tenant Residential and Mixed-Use Properties
  • Industrial and Warehouse Facilities with Access Control Requirements

Why Medeco?

Medeco cylinders are built from durable machined brass components and certified to ANSI A156.30 Level A and ANSI A156.5 Grade 1, ensuring both physical strength and reliable key control for heavy-use commercial environments. The 200901's compatibility with Arrow D & E Series and Sargent 470 & 480 hardware — combined with UL437-listed drill and pick resistance on M4 cylinders — makes it a trusted choice for security professionals seeking a high-security retrofit solution without the cost of full lockset replacement.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Parts and Accessories
Series:
200901
Product Subgroup:
Cylinders
Product Type:
Cylinders
Commercial/Residential:
Commercial
Subcategory:
Cylinders
Cylinder Classification:
6Pin
Product Category:
Parts and Accessories
Department:
Door Hardware

Medeco 200901T-26-DLT – Frequently Asked Questions

1) Will the Medeco 200901 cylinder fit my Arrow D Series knob lock without replacing the whole lockset?
That is exactly what the 200901 is built for. It's a key-in-knob/lever retrofit cylinder that drops into Arrow D and E Series cylindrical knob and lever locksets, and into Sargent 470 and 480 hardware. You keep the existing lockset, chassis and door prep, and swap only the cylinder, so the opening goes over to Medeco keys without a new lock or new holes in the door.
2) Do I order the Medeco 200901 in Biaxial or M3 keyway?
Both are offered, and the right answer is whatever your building already runs. Biaxial and M3 are separate Medeco key systems, and a key cut on one will not operate the other, so if you have an existing Medeco system on site, match it or the new cylinder will need its own keys. Starting fresh, M3 is the later of the two platforms. Either way, keep every cylinder in a facility on one technology if you want one key to walk the building.
3) Is the Medeco 200901 UL 437 listed and what grade is it?
Medeco M4 key-in-knob cylinders are UL 437 listed for drill and pick resistance. The 200901 is certified to ANSI A156.30 Level A for patent-protected key control and physical strength, and to ANSI A156.5 Grade 1 for heavy-use commercial applications. For a spec that calls out high-security cylinders by standard, those are the three lines a submittal usually needs.
4) Will the Medeco 200901 stop tenants from copying keys at the hardware store?
Yes, that is the main reason to buy it. The 200901 uses Medeco's patent-protected key control, which restricts unauthorized key duplication, and it is certified to ANSI A156.30 Level A, the level that covers patented key control. For multi-tenant residential, schools or healthcare, that means keys come back at turnover or they do not exist, which is the problem a standard 6-pin cylinder cannot solve no matter how good the lock is.
5) I need a Medeco cylinder for a Sargent lock but not for a 470 or 480 series. Is this the right one?
No. The 200901 is cut for Arrow D and E Series and Sargent 470 and 480 hardware specifically, and cylinder retrofits live or die on the tailpiece and cam matching the exact lock series. Medeco publishes over 100 cylinder designs and tailpiece configurations, so there is almost certainly a version for your Sargent lock, but it is a different part number. Identify the lock series stamped on the chassis first, then match the cylinder to it.
6) My doors have mortise locks, not knob locks. Can I use the Medeco 200901?
No. The 200901 is a key-in-knob/lever cylinder, which is a completely different body and mounting from a mortise cylinder that threads into the lock case. For mortise openings you want a threaded mortise cylinder such as the Corbin Russwin 1000 Series Grade 1 mortise cylinder in 1-1/2 inch length with an A02 straight cam, or the 1070 Grade 1 6-pin mortise housing in 1-1/4 inch with an A01 cloverleaf cam. Cam style has to match the lock brand, so confirm which cam your mortise lock takes before ordering.
7) Can I key the Medeco 200901 into a master key system with my other Medeco cylinders?
Yes, as long as they are on the same Medeco platform. Order the 200901 in the same technology as your existing cylinders, Biaxial or M3, and it pins into the same system, so one master or grand master operates the Arrow and Sargent openings alongside the rest of your Medeco hardware. Six pins gives the system depth for multiple levels of masterkeying. Mixing Biaxial and M3 in one system does not work, since the keys are not interchangeable.
8) Will a Medeco 200901 work in a rim exit device?
No. The Medeco 200901 is a key-in-knob/lever retrofit cylinder for Arrow D and E Series and Sargent 470 and 480 hardware. A rim exit device takes a rim cylinder, such as the Schlage 20-021 6-pin rim cylinder with a vertical tailpiece cam, the Schlage 20-022 with a horizontal tailpiece cam, or the Corbin Russwin 3070 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. The housing shape and tailpiece are different parts of the lock, so the two are not interchangeable regardless of pin count.
9) What is the closest equivalent to a Medeco 200901 cylinder for an Arrow or Sargent knob or lever lockset if high-security keying is not required?
The Kaba Ilco 1579 is a knob and lever cylinder made for Sargent hardware, and the Kaba Ilco 1539 is a key-in-knob/lever universal cylinder that covers a broad range of knob and lever locksets. The Medeco 200901 differs in that it is a 6-pin key-in-knob/lever retrofit cylinder built on Medeco's patent-protected key control and certified to ANSI A156.30 Level A and ANSI A156.5 Grade 1, with UL 437 listing on M4 cylinders. Choose the Medeco when restricted key duplication and drill and pick resistance are part of the specification, and the Ilco 1579 or 1539 when the goal is a standard replacement cylinder in the same knob or lever body.
10) Can a Medeco 200901 be used on an aluminum storefront door with an Adams Rite deadlock?
No. Adams Rite narrow stile deadlocks take their own cylinder formats. The Adams Rite 4036 is a five-pin mortise cylinder rated Grade 1 with a 1/2 inch minimum door thickness, and the 4024 and 4025 cylinder pulls are made for the Adams Rite MS1847 deadlock and deadlatch, with the 4026 five-pin cylinder pull intended for the 5017 wood door deadlock. The Medeco 200901 is a key-in-knob/lever retrofit cylinder for Arrow D and E Series and Sargent 470 and 480 locksets, which is a different mounting entirely.
11) Is the Medeco 200901 a 5-pin or 6-pin cylinder?
Six pins. The 200901 is a 6-pin tumbler cylinder, which is what gives it the extra key differs and pick resistance a commercial key system needs. If you are standardizing a building, the 6-pin count matters because it sets how deep a master key system you can build under one top-level key.
12) What is the difference between ordering the Medeco 200901 pinned versus sub-assembled?
Pinned means the cylinder arrives keyed and built to your key system, ready to install. Sub-assembled means it comes unpinned for a locksmith or a facility with its own pinning kit and key records to finish in-house, and there is also a sub-assembled, no-slider option for shops that stock and fit the slider themselves. If you do not maintain your own Medeco key records, order it pinned.
13) What is a cheaper alternative to a Medeco cylinder for an Arrow or Sargent knob lock?
If restricted keying is not the goal and you just need a working replacement cylinder, the Kaba Ilco 1539 Series key-in-knob/lever universal cylinder or the Kaba Ilco 1579 knob and lever cylinder for Sargent cover the same job in a conventional keyway. The trade-off is real: neither carries Medeco's patented key control, so keys can be duplicated anywhere. Use the Ilco when you are fixing a worn cylinder, use the 200901 when the problem is uncontrolled keys.
14) Can I rekey the Medeco 200901 in-house like a small-format interchangeable core?
Not the same way. The 200901 is a fixed retrofit cylinder that has to be pulled from the lock and pinned, which is why it is sold pinned or sub-assembled for a shop with Medeco key records. If tool-free rekeying by maintenance staff is what you are after, an interchangeable core system is the better structure: the BEST 1C Series standard 5-pin core or the BEST 1CDF drill-resistant patented 7-pin core in the 150 Series both pull with a control key. That is a different lock prep, so it is a system decision, not a cylinder swap.
15) Is the Medeco 200901 suitable for a high-traffic commercial building or is it a residential cylinder?
Commercial. The 200901 is built from machined brass components and certified to ANSI A156.5 Grade 1, the grade written for consistent quality in heavy-use applications. It is the cylinder you put on school corridors, healthcare, government and warehouse openings where the key turns dozens of times a day and the key control has to hold up alongside it.
16) How does a Medeco 200901 compare to an interchangeable core cylinder for a facility that rekeys often?
The Medeco 200901 is a fixed 6-pin retrofit cylinder that carries patent-protected key control, ANSI A156.30 Level A and ANSI A156.5 Grade 1, and is available pinned or sub-assembled. An interchangeable core system changes the approach: the BEST 1C 5-pin standard core and the BEST 1CB Peaks 150 Series core pull out with a control key, and the BEST 1CDF is a drill-resistant patented 7-pin brass 150 Series core. Schlage's 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is a full size interchangeable core in the C keyway. The Medeco requires pinning at the cylinder; the core products let a facility swap keying by exchanging the core.
17) Is the Falcon A23161-05 G a substitute for a Medeco 200901?
They serve the same position in the door but not the same hardware or keying program. The Falcon A23161-05 G is a key-in-lever cylinder for RU/T Series hardware, 6-pin in the G keyway, keyed different and supplied with two cut keys. The Medeco 200901 is a 6-pin key-in-knob/lever cylinder for Arrow D and E Series and Sargent 470 and 480, offered in Biaxial and M3 technology and keyway options and in Pinned or Sub - Assembled form. Match the cylinder to the lockset brand and series in the door, then to the keyway the facility is keyed to.
18) What is the difference between the Medeco 200901 and the Kaba Ilco 1549 or 1599?
All three are replacement cylinders, but they target different bodies. The Kaba Ilco 1549 is a key-in-deadbolt cylinder and the 1599 is a key-in-knob replacement cylinder. The Medeco 200901 is a 6-pin key-in-knob/lever retrofit cylinder for Arrow D and E Series and Sargent 470 and 480 hardware, built from machined brass and certified to ANSI A156.30 Level A and ANSI A156.5 Grade 1, with 14 finish options from Bright Brass and Satin Brass through Dark Bronze Oil-Rubbed, Satin Nickel, Bright Chrome and Flat Black to match existing hardware.
19) Can I get a Medeco retrofit cylinder in a finish that matches my existing knobs?
Thirteen finishes are available on the 200901: 20 Antique Nickel, 605 Bright Brass, 606 Satin Brass, 609 Antique Brass, 611 Bright Bronze, 612 Satin Bronze, 613 Dark Bronze Oil-Rubbed, 618 Bright Nickel, 619 Satin Nickel, 622 Flat Black, 624 Dark Bronze, 625 Bright Chrome and 626 Satin Chrome. Since only the cylinder face shows once installed, matching the BHMA number on your existing trim is usually enough to keep the opening looking untouched.
20) What should be ordered instead of a Medeco 200901 when an opening needs the appearance of a keyed cylinder but no key function?
A dummy cylinder fills that role. The BEST 12E Series dummy rim cylinder has a 1-5/32 inch diameter and provides the cylinder face without an operating mechanism. The Medeco 200901 is an operating 6-pin retrofit cylinder for Arrow D and E Series and Sargent 470 and 480 locksets and carries patent-protected key control, so it is the wrong choice where no keying is wanted.
How fast can I get the Medeco 200901T-26-DLT 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 Medeco 200901T-26-DLT come with a warranty?
Absolutely. The Medeco 200901T-26-DLT 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 Medeco 200901T-26-DLT?
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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