Corbin Russwin 466F52 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$90.09
$45.83
Corbin Russwin 466F52 Grade 1 ML2000 Square Adapter, 2-1/4" Thick door

Corbin Russwin 466F52 Grade 1 ML2000 Square Adapter, 2-1/4" Thick door

(No reviews yet) Write a Review

Model: 466F52-626
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$90.09
$45.83
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Corbin Russwin 466F52 ML2000 Square Adapter for 2-1/4" Thick Doors with "M" and "N" Escutcheon Compatibility

Precision Adapter Component for ML2000 Series Mortise Lock Working Trim

The Corbin Russwin 466F52 is a square adapter engineered specifically for use with the ML2000 Mortise Lock series, providing reliable compatibility with Working Trim featuring "M" and "N" Escutcheon configurations. Designed to accommodate 2-1/4" thick doors, this commercial-grade adapter ensures proper trim alignment and secure integration within the ML2000 mortise lock system. As a purpose-built accessory component, it delivers the precise fit required for professional door hardware installations in commercial environments.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 mortise lock per A156.13 Series 1000, Operational and Security Grade 1
  • UL Cycle above and beyond: 14.5 Million Cycles (Verification ID: V875753)
  • Patented Quick Reversible latchbolt — reverse handing without disassembling the lock case
  • Multi-function capability: 12 functions configurable from one ML2054 lockbody
  • Heavy-gauge steel lockcase 5-7/8" x 4" x 15/16"; 1" stainless steel deadbolt, 1" throw
  • 3/4" (19mm) throw anti-friction two-piece latchbolt requires less force to close
  • Wide variety of trim designs including Muséo®, Vineyard™, Behavioral Health (BHSS/BLSS)
  • Status indicator options for locked/unlocked visibility (sectional and escutcheon trim)
  • Motorized Electric Latch Retraction (MELR) available for ML20900 series
  • Thru-bolted trim designs for proper alignment and increased security
  • Can be used with new or existing Corbin Russwin key systems; accepts most other manufacturers' cylinders
  • UL/cUL listed, UL10C positive pressure; 3-hour fire door up to 4' x 10' single or 8' x 10' pair
  • Ten-year mechanical warranty; five-year MELR; two-year electrical

Technical Specifications

  • Grade: ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1
  • Handing: Handed; quick reversible — re-handed without disassembling the lock case
  • Door Thickness: 1-3/4" (44mm) standard; optional thicknesses available
  • Backset: 2-3/4" (70mm)
  • Lockcase: Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm)
  • Armored Front: Wrought brass, bronze, or stainless steel, 8" x 1-1/4"
  • Latchbolt: 2-piece mechanical with anti-friction insert, 5/8" x 1" x 3/4" (19mm) throw
  • Auxiliary Latchbolt: 9/16" (14mm) effective throw; deadlocking
  • Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" (25mm) throw
  • Strike: Wrought brass, bronze, or stainless steel, ANSI straight lip, 4-7/8" x 1-1/4" x 1-1/8" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Spacing: C. to c. knob/lever to cylinder: 3-5/8" (92mm); knob/lever to thumbturn: 2-7/16" (62mm)
  • Certifications: ANSI/BHMA A156.13 Grade 1; UL/cUL UL10C 3-hour positive pressure; ADA A117.1; California State Fire Marshal; Windstorm/Hurricane certified
  • Warranty: Ten-year mechanical; five-year MELR; two-year electrical

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin door hardware components are engineered to exacting commercial standards, ensuring reliable performance and precise fit within the ML2000 Mortise Lock system. The 466F52 square adapter reflects the brand's commitment to purpose-built solutions that simplify installation and maintain system integrity for 2-1/4" thick door applications. Trusted by commercial door hardware professionals, Corbin Russwin parts and accessories deliver the dependable compatibility required in demanding institutional and commercial environments.

Product Specs

Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Commercial/Residential:
Commercial
Subcategory:
Parts and Accessories
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Product Function:
Adapter
For Use With:
ML2000 Mortise Lock; Working Trim-"M" and "N" Escutcheon
Department:
Door Hardware

Corbin Russwin 466F52-626 – Frequently Asked Questions

1) What does the Corbin Russwin 466F52 square adapter actually do?
It is a spindle/trim adapter for the ML2000 Series mortise lock, sized for a 2-1/4 inch thick door. Standard ML2000 trim is set up for a 1-3/4 inch door, so when the door is thicker the working trim needs a matching adapter to keep the spindle engagement and trim alignment correct. The 466F52 covers that gap for Working Trim with "M" and "N" escutcheons.
2) Will the 466F52 work with sectional or knob trim on an ML2000 lock?
No. The 466F52 is specified for Working Trim using the "M" and "N" escutcheon designs. If the opening uses a different trim family on the ML2000, you need the adapter matched to that trim, not this one.
3) My doors are 1-3/4 inches thick. Do I need this adapter?
No. The ML2000 mortise lock is built for 1-3/4 inch (44mm) doors as standard, so no thickness adapter is required there. The 466F52 is only for going to a 2-1/4 inch door.
4) Does adding this thick-door adapter change the backset or strike prep on the frame?
No. The ML2000 lock keeps its 2-3/4 inch (70mm) backset and the ANSI straight lip strike, 4-7/8 x 1-1/4 inch with 1-1/8 inch lip to center. The adapter only handles the trim side of a 2-1/4 inch door, so frame prep and latch geometry stay as specified, including the 3/4 inch (19mm) latchbolt throw and 1 inch deadbolt throw.
5) Can I use an ML2000 lock with this adapter on a fire rated opening?
Yes. The ML2000 Series is UL/cUL listed and UL10C positive pressure rated for 3-hour fire doors up to 4 ft x 10 ft single or 8 ft x 10 ft pair. It is also ANSI/BHMA A156.13 Series 1000 Grade 1 for operational and security, and meets ADA A117.1.
6) What finishes does the 466F52 adapter come in?
Two: 605 bright brass and 626 satin chrome. Pick the one that matches the escutcheon trim already going on the door, since the adapter sits with the visible trim.
7) Is this adapter handed?
The adapter itself is a thickness component. Handing lives in the lock body, and the ML2000 uses a quick reversible latchbolt that can be re-handed without taking the lock case apart, so you are not ordering the adapter by hand.
8) What spacing should I lay out for escutcheon trim on an ML2000 door?
Center to center from the knob or lever to the cylinder is 3-5/8 inches (92mm), and knob or lever to thumbturn is 2-7/16 inches (62mm). The lock case itself is 5-7/8 x 4 x 15/16 inches with an 8 x 1-1/4 inch armored front. Those numbers do not change when the 466F52 adapter is used for a 2-1/4 inch door.
9) Can I keep my existing cylinders when standardizing on ML2000 locks across a building?
Yes. The ML2000 can be used with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders. The factory cylinder is brass, 6-pin L4 keyway, 0-bitted as standard.
How fast can I get the Corbin Russwin 466F52-626 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 Corbin Russwin 466F52-626 come with a warranty?
Absolutely. The Corbin Russwin 466F52-626 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 Corbin Russwin 466F52-626?
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
Why buy the Corbin Russwin 466F52-626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!