Corbin Russwin ML2002 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$630.78
$268.55
Corbin Russwin Corbin Russwin ML2002 Classroom Intruder - Mortise Lockbody Only COR-ML2002-LL

Corbin Russwin ML2002 Grade 1 Classroom Intruder - Mortise Lockbody Only

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Model: COR-ML2002-LL-626
From the ML2000_Series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$630.78
$268.55
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Corbin Russwin ML2002-LL Classroom Intruder Mortise Lockbody with Field Reversible Handing

Grade 1 Commercial Mortise Lock for Classroom Intruder Security

The Corbin Russwin ML2002-LL is a Grade 1 Classroom Intruder mortise lockbody engineered for high-traffic commercial, institutional, industrial, and government applications. Constructed of heavy-gauge steel, this lockbody features a patented Quick Reversible latchbolt and a 1" stainless steel deadbolt, designed for 1-3/4" (44mm) door thickness with field-reversible handing. The included ANSI straight lip strike measures 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8" (29mm) lip to center, providing a complete and code-compliant installation solution for schools, hospitals, offices, and other demanding 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

  • K-12 Schools and Educational Facilities
  • College and University Campus Buildings
  • Healthcare Institutions and Hospitals
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Hotels and Hospitality Properties
  • Industrial and Institutional Facilities

Tamper-Resistant Design

The ML2000VR (Vandal Resistant) Series option features vandal-resistant stainless steel escutcheons with tapered edges and Torx® pin tamper-resistant screws. When paired with Corbin Russwin patented high-security Pyramid or Access 3® cylinders, any door equipped with this lockbody becomes a formidable barrier against intruders, making it especially well-suited for classroom security applications.

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locks deliver professional-grade reliability with heavy-gauge steel construction and a 1" stainless steel deadbolt, rated for an extraordinary 14.5 Million Cycles in UL testing (Verification ID: V875753). Backed by a 10 Year Limited warranty and featuring the patented Quick Reversible latchbolt, the ML2002-LL is engineered for demanding commercial applications where dependable classroom security and long-term performance are essential.

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
ML2000 Series
Grade:
Grade 1
Keyed Function:
Non-Keyed
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
Product Subgroup:
Mortise Lock Bodies
Product Type:
Mortise Lockbody Only
Keyed:
No
Commercial/Residential:
Commercial
Function Description:
Mortise Lockbody Only
Lock Type:
Mortise
Lock Function:
Classroom Intruder
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
ML2002
Collection:
ML2000_Series
Product Function:
Classroom
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Category:
Mechanical Locks
Product Substrate:
Brass or Bronze
Department:
Door Hardware

Corbin Russwin COR-ML2002-LL-626 – Frequently Asked Questions

1) What is the Corbin Russwin ML2002 and what function does it provide?
The ML2002 is a classroom intruder mortise lockbody designed for educational facility security. It allows teachers to lock the door from inside without exposing themselves to hallway threats. The outside lever remains locked while inside operation stays free.
2) Is this lockbody compatible with existing Corbin Russwin mortise hardware?
Yes, the ML2002 works with standard Corbin Russwin mortise trim and cylinders. It fits the same door preparation as other ML series lockbodies. Verify your existing trim compatibility before ordering.
3) How do I determine the correct handing for this lockbody?
Stand on the secure side of the door where you want free egress. If hinges are on your right, order right hand. If hinges are on your left, order left hand. Classroom functions require proper handing for safe operation.
4) What door thickness and backset does this lockbody require?
Standard mortise lockbodies fit 1-3/8" to 3" door thickness with 2-3/4" backset typical. Verify your door preparation matches manufacturer specifications. Some applications may require different backsets.
5) What security grade does the ML2002 meet?
Corbin Russwin mortise lockbodies typically meet Grade 1 commercial standards for heavy-duty applications. Check product documentation for specific ANSI/BHMA grade certification and cycle testing results.
6) Does this lockbody meet school security code requirements?
Classroom intruder functions are designed for educational facility codes requiring inside lockdown capability. Verify local fire marshal and building code requirements. Some jurisdictions have specific classroom security mandates.
7) What additional components do I need to complete this lockset?
You need mortise cylinders, interior and exterior trim, and strike hardware. Browse our Corbin Russwin collection for compatible trim sets and door hardware components.
8) How do I install this mortise lockbody properly?
Use manufacturer's template for door preparation. Mortise pocket must be precisely cut for proper fit. Install lockbody first, then attach trim and cylinders. Verify smooth operation before final adjustment.
9) How do I maintain and adjust this classroom lockbody?
Lubricate lock mechanism quarterly with graphite or approved lubricant. Check latch alignment and strike fit regularly. Adjust screws as needed to maintain proper operation. Test emergency lockdown function monthly.
10) Are there similar classroom security lockbodies available?
Browse our complete Corbin Russwin mortise lockbody selection for other classroom and institutional functions. Different ML series numbers provide various security and access control options.
11) What field conditions affect mortise lockbody performance?
Door warping, frame settlement, and temperature changes can impact operation. Ensure proper door clearances and frame alignment. High-traffic areas may require more frequent adjustment and maintenance.
12) How do I verify measurements before ordering this lockbody?
Measure existing mortise pocket dimensions, door thickness, and backset distance. Check hinge location for proper handing. Confirm strike alignment and door frame condition before installation.
How fast can I get the Corbin Russwin COR-ML2002-LL-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 COR-ML2002-LL-626 come with a warranty?
Absolutely. The Corbin Russwin COR-ML2002-LL-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 COR-ML2002-LL-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 COR-ML2002-LL-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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