Medeco 2020575 6-Pin Key-in-Kn...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$183.89
Medeco Medeco 2020575 - 6 Pin Cylinder for Corbin Russwin Old Style 3300 & 3400 Series MED-2020575

Medeco 2020575 6-Pin Key-in-Knob/Lever Retrofit Cylinder for Corbin Russwin 3300 & 3400 Series

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Model: 2020575T-26-DLT
$183.89
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$183.89
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Medeco 2020575 6-Pin Key-in-Knob/Lever Retrofit Cylinder for Corbin Russwin Old Style 3300 & 3400 Series

The Medeco 2020575 is a 6-pin Key-in-Knob/Lever retrofit cylinder engineered to replace cylinders in Corbin Russwin Old Style 3300 and 3400 Series locksets, offering a seamless upgrade path without full lockset replacement. Designed to retrofit knob-type cylindrical locksets, lever-type cylindrical locksets, padlocks, and bored-type auxiliary deadlatches and deadlocks, this cylinder delivers Medeco's renowned high-security performance. Constructed of durable machined brass components, it meets ANSI A156.30 Level A and ANSI A156.5 Grade 1 certifications, ensuring patent-protected key control and consistent quality for heavy-use commercial applications. Medeco M4 Key-in-Knob cylinders are UL437 listed for drill and pick resistance with utility patent-pending key control.

Key Features

  • 6-Pin Cylinder Configuration: Features a 6-pin tumbler design for enhanced security and key control in commercial-grade cylindrical locksets.
  • Retrofit Compatibility: Specifically designed to fit Corbin Russwin Old Style 3300 & 3400 Series locksets, enabling a direct upgrade without replacing the entire lockset.
  • UL437 Listed (M4): Medeco M4 Key-in-Knob cylinders are UL437 listed for drill and pick resistance, providing verified high-security protection.
  • Patent-Pending Key Control: Utility patent-pending key control technology restricts unauthorized key duplication for enhanced access management.
  • Durable Machined Brass Construction: Cylinders are constructed of durable machined brass components for long-term reliability in demanding commercial environments.
  • Broad Retrofit Capability: Medeco offers over 100 different cylinder designs and tailpiece configurations, supporting the most popular security hardware and minimizing full lockset replacements.
  • Wide Finish Selection: Available in 14 finishes including Bright Brass (05), Satin Brass (06), Antique Brass (09), Satin Brass Blackened (10), Bright Bronze (11), Satin Bronze (12), Oil Rubbed Bronze (13), Bright Nickel (18), Satin Nickel (19), Antique Nickel (20), Black (22), Dark Bronze (24), Bright Chrome (25), and Satin Chrome (26).

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)
  • UL437 Listed — Drill and pick resistance (M4 Key-in-Knob cylinders)
  • Commercial Grade

Technical Specifications

  • Product Family: Key-in-Knob/Lever Cylinder
  • Pinning: 6-Pin
  • Compatible Hardware: Corbin Russwin Old Style 3300 & 3400 Series
  • 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
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties

Why Medeco?

Medeco retrofit cylinders are built from durable machined brass components and engineered to meet rigorous ANSI A156.30 Level A and ANSI A156.5 Grade 1 standards, delivering patent-protected key control and physical strength verified for heavy commercial use. With UL437 listing for drill and pick resistance on M4 cylinders and over 100 tailpiece configurations available across the Medeco lineup, the 2020575 represents a cost-effective, high-security upgrade for Corbin Russwin 3300 & 3400 Series installations without the expense of full lockset replacement.

Manufacturer Resources

Medeco Product Catalog

Product Specs

Product Group:
Parts and Accessories
Series:
2020575
Product Subgroup:
Cylinders
Product Type:
Key-in-Knob/Lever Cylinder
Commercial/Residential:
Commercial
Subcategory:
Cylinders
Cylinder Classification:
6Pin
Product Category:
Parts and Accessories
Department:
Door Hardware

Medeco 2020575T-26-DLT – Frequently Asked Questions

1) Will the Medeco 2020575 cylinder fit my Corbin Russwin 3300 Series lockset?
Yes, if it's an Old Style 3300 or 3400 Series lockset. The Medeco 2020575 is a 6-pin key-in-knob/lever retrofit cylinder built specifically to drop into Corbin Russwin Old Style 3300 and 3400 Series locksets, so you upgrade the cylinder and keying without buying new locks. Corbin Russwin changed cylinder prep between old and new style, so confirm which generation is in the door before ordering.
2) What do I have to specify when ordering a Medeco 2020575 cylinder?
Three choices. Keyway technology, either Biaxial or M3. Pinning state: Pinned, Sub-Assembled, or Sub-Assembled with No Slider. And finish, from 13 options including 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, 20 Antique Nickel, 622 Flat Black, 624 Dark Bronze, 625 Bright Chrome, and 626 Satin Chrome.
3) Should I order the Biaxial or M3 keyway version?
Match whatever keyway system your building already runs on. Medeco Biaxial and M3 are different platforms and their keys are not interchangeable, so a Biaxial cylinder will not accept an M3 key. If you are keying these into an existing Medeco system, order the same technology as the cylinders already in service; if you are starting fresh, M3 is the newer of the two platforms offered here.
4) Is this Medeco cylinder rated for a high-security spec on a government or healthcare job?
The 2020575 meets ANSI A156.30 Level A for patent-protected key control and physical strength, and ANSI A156.5 Grade 1 for heavy-use applications. Medeco M4 key-in-knob cylinders are UL 437 Listed for drill and pick resistance. That combination is what most institutional high-security cylinder specs call out.
5) Do I need to replace the whole Corbin Russwin lockset to get Medeco keying?
No. That is the point of the 2020575. It swaps the cylinder only in Corbin Russwin Old Style 3300 and 3400 Series locksets, so you keep the existing chassis, trim, and door prep and still get Medeco key control. Medeco carries over 100 cylinder designs and tailpiece configurations across the line, so other hardware brands on the same site can usually be converted the same way.
6) What is the difference between Pinned and Sub-Assembled on a Medeco retrofit cylinder?
Pinned means the cylinder ships keyed and ready to install. Sub-Assembled ships without the pinning done, for a locksmith who is going to pin it into an existing Medeco masterkey system on the bench. There is also a Sub-Assembled, No Slider option for shops that supply their own slider. If you are not set up to pin Medeco cylinders, order Pinned.
7) Can I use this cylinder on a padlock or a bored deadlatch instead of a knob lock?
Yes. Beyond knob and lever cylindrical locksets, this key-in-knob/lever style cylinder is designed to retrofit padlocks and bored-type auxiliary deadlatches and deadlocks. The limiting factor is the tailpiece and cylinder prep of the host hardware, and this one is cut for the Corbin Russwin Old Style 3300/3400 pattern.
8) Will these cylinders match the finish on the knobs already on my doors?
Most likely, yes. Thirteen finishes are offered, covering the common commercial BHMA numbers: 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, 20 Antique Nickel, 622 Flat Black, 624 Dark Bronze, 625 Bright Chrome, and 626 Satin Chrome. For a building standardized on 626 Satin Chrome or 613 oil-rubbed, order the matching number and the cylinder face blends with the existing trim.
9) Is the Medeco 2020575 brass or plated steel, and will it hold up in a high-traffic building?
Machined brass components throughout. Combined with the ANSI A156.5 Grade 1 listing, which is the heavy-use commercial grade, it is built for office towers, schools, hospitals, retail, and multi-tenant residential where the key gets turned all day.
10) Is a 6-pin cylinder needed, or would 5-pin work in the same lock?
The 2020575 is a 6-pin cylinder. Six chambers give you more differs and more room for master keying levels, which is why it's the usual choice when a facility is building or extending a keyed system rather than doing one-off replacements. It installs in the same Corbin Russwin Old Style 3300/3400 prep either way.
How fast can I get the Medeco 2020575T-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 2020575T-26-DLT come with a warranty?
Absolutely. The Medeco 2020575T-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 2020575T-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
Why buy the Medeco 2020575T-26-DLT from ZenSupply?
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