Corbin Russwin ML2092 Grade 1 Mortise Security Institution or Utility Lockset

Corbin Russwin ML2092-KEYED Security Institution & Utility Mortise Lock with Double Cylinder Keying

Grade 1 Commercial Mortise Lockset for High-Security Institutional and Utility Applications

The Corbin Russwin ML2092-KEYED is a Grade 1 Security Institution and Utility Mortise Lock from the ML2000 Series, engineered for demanding commercial, institutional, industrial, and government environments. This double-cylinder mortise lock operates the latchbolt by key from either side, with the deadbolt thrown and retracted by key either side as well, while inside and outside grips remain locked at all times. Constructed of heavy-gauge steel with a 3/4" latchbolt and 1" stainless steel deadbolt, it is designed for 1-3/4" (44mm) standard door thickness and features a field-reversible handing for flexible installation. An auxiliary latch deadlocks the latchbolt for added security, and a status indicator shows deadbolt position. Note: This function does not allow free egress and can pose a life safety hazard in the event of an emergency; installation should be in accordance with approved codes only.

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

• Healthcare and Psychiatric Institutions
• Government and Municipal Buildings
• Educational Facilities and Schools
• Industrial and Utility Facilities
• Correctional and Detention Facilities
• Commercial Office Buildings
• Hotels and High-Use Hospitality Properties

Tamper-Resistant Design

The ML2000VR (Vandal Resistant) Series variant 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 can become a formidable barrier to intruders, making this series ideal for high-abuse institutional environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locks deliver professional-grade reliability through heavy-gauge steel construction and a patented Quick Reversible latchbolt, with UL Cycle testing verified at 14.5 Million Cycles (Verification ID: V875753) for proven long-term performance. The ML2092-KEYED is backed by a 10 Year Limited warranty, providing lasting confidence for facility managers and security professionals. Engineered for the most demanding commercial, institutional, and government applications where dependable, high-security performance is essential.