Corbin Russwin ML2003 Mortise ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,566.92
$800.55

Corbin Russwin ML2003 Mortise Classroom Lockset

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Model: ML2003 NSA 626
From the ML2000_Series Collection
$1,566.92
$800.55
Selected Finish is
Selected Lever Type is
Selected Rose/Escutcheon is

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

$1,566.92
$800.55
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CORBIN RUSSWIN ML2003 Mortise Classroom Lockset

  • Lock or unlock outside grip by key.
  • Latchbolt by grip either side, unless outside grip is locked.
  • Inside grip always free.
  • Auxiliary latch deadlocks latch

Standard features

  • Door thickness: 1-3/4" (44mm) standard.
  • Handing: Field Reversible;
  • Strike: ANSI straight lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8" (29mm) lip to
    center.

 

ML2000 SERIES OVERVIEW

The ML2000 Series is a Grade 1 mortise lock designed to meet the rigors of high-traffic commercial, institutional, industrial and government applications. Constructed of heavy-gauge steel, the lockbody features our patented Quick Reversible latchbolt, and a 1” stainless steel deadbolt. A wide variety of trim designs and functions and a 10-year warranty lend to the ML2000’s versatility and reliability, making it the ideal choice for use in offices, schools, hospitals, hotels and other high-use applications.

 

Security

Further discourage intrusion and abuse with the ML2000VR (Vandal Resistant) Series mortise lock featuring vandal-resistant stainless steel escutcheons with tapered edges and Torx® pin tamper resistant screws. When matched with Corbin Russwin patented high-security Pyramid or Access 3® cylinders, any door can become a formidable barrier to intruders.

Aesthetics

Complement any application with the full range of trim designs and finishes offered with ML2000 Series. From stainless steel security trims to bright brass Vineyard™ levers, design continuum can be achieved without forfeiting aesthetics. For additional information regarding designer trim, see the Corbin Russwin Vineyard™ Collection and Muséo® Collection catalogs.

 

Key Advantages

  • UL Cycle above and beyond test completed at 14.5 Million Cycles. Verification ID: V875753
  • Patented Quick Reversible feature enables reversal of hands without disassembling the lock case (Patent pending and/or patent www.assaabloydss.com/patents)
  • Security trims provide a vandalresistant barrier
  • Can be used with new or existing Corbin Russwin key systems. Also accepts cylinders of most other manufacturers.
  • Provides life safety and security in a single door prep, saving the additional cost of a deadlock
  • Thru-bolted trim designs for proper alignment and increased security
  • Multi-function lockbody
  • Status indicator options provide peace of mind on the locked/unlocked status of a door

 

DOWNLOADS & RESOURCES

ML2000 Series Catalog

ML2000 Series Promotional Sheet

ML2000 Series Parts Manual

Environmental Product Declaration

Installation instructions and templates

Manufacturer Resources

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
ML2000 Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin, L4 Keyway
Standard Latch:
3/4" Latchbolt
Standard Strike:
ANSI straight lip standard, 4-7/8" x 1-1/4" x 1-1/8"
Warranty:
10 Year Limited
ANSI/BHMA:
F04
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Latchbolt by key when outside grip locked by toggle action stop. Latchbolt by grip either side, unless outside grip is locked by toggleaction stop.
Lock Type:
Mortise
Lock Function:
Classroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
ML2003
Collection:
ML2000_Series
Product Function:
Classroom
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Substrate:
Brass or Bronze
Product Category:
Mechanical Locks

Corbin Russwin ML2003 NSA 626 – Frequently Asked Questions

1) What is the ML2003 classroom lockset function?
The ML2003 provides classroom security function. Outside lever is locked by key, inside lever always free for egress. Key unlocks outside lever temporarily until relocked.
2) What door thickness does this mortise lock fit?
Standard mortise locks fit 1-3/4" to 2-1/4" thick doors. Verify your door thickness and check manufacturer template for exact specifications.
3) How do I determine the correct handing for this lock?
Stand outside the door. If hinges are on right, order right hand. If hinges are on left, order left hand. Specify handing when ordering.
4) What finish options are available for the ML2003?
Common finishes include satin chrome, bright brass, and oil-rubbed bronze. Check product specifications for available finishes and matching options.
5) What grade is this Corbin Russwin mortise lock?
Corbin Russwin ML series are typically Grade 1 commercial locks meeting ANSI/BHMA standards. Verify grade rating for your specific application requirements.
6) Does this lock meet fire door requirements?
Many Corbin Russwin mortise locks are listed for fire doors. Check product documentation and local codes for specific fire rating requirements.
7) What cylinders work with this mortise lock?
Uses standard mortise cylinder. Compatible with most major cylinder manufacturers including Corbin Russwin, Best, and Schlage mortise cylinders.
8) What backset does the ML2003 require?
Standard mortise locks typically use 2-3/4" backset. Confirm backset measurement from door edge to center of cylinder hole before installation.
9) How do I maintain this mortise lockset?
Lubricate moving parts annually with graphite or manufacturer-approved lubricant. Check cylinder operation and adjust door alignment as needed.
10) What other ML series functions are available?
Corbin Russwin offers complete ML series with passage, privacy, storeroom, and other commercial functions. Browse Corbin Russwin products for compatible options.
11) Can this lock be used on exterior doors?
While primarily designed for interior classroom use, verify weather resistance and security requirements for exterior applications with local codes.
How fast can I get the Corbin Russwin ML2003 NSA 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 ML2003 NSA 626 come with a warranty?
Absolutely. The Corbin Russwin ML2003 NSA 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 ML2003 NSA 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 ML2003 NSA 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.

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