Corbin Russwin 423F54 Grade 1 - ML2000 Armored Front for Deadbolt, Latchbolt

Corbin Russwin 423F54 ML2000 Series Armored Front Scalp for Deadbolt and Latchbolt

Commercial-Grade Armored Front Replacement Component for ML2000 Series Mortise Locksets

The Corbin Russwin 423F54 is a precision-engineered Armored Front Scalp designed for use with ML2024, ML2020, ML2030, and ML2022 mortise locksets in the ML2000 Series. This commercial-grade component is available in wrought brass, bronze, or stainless steel and attaches securely to the lockcase front by machine screws. For ML2000HS and ML2000VR configurations, the armored front utilizes security Torx® screws for enhanced tamper resistance. Designed to serve both deadbolt and latchbolt applications, this replacement part delivers reliable performance in demanding 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

Tamper-Resistant Design

The Corbin Russwin 423F54 Armored Front Scalp incorporates security Torx® screws on ML2000HS and ML2000VR configurations, providing enhanced tamper resistance to deter unauthorized removal or tampering in high-security commercial environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin door hardware components are engineered to commercial-grade standards, with the 423F54 Armored Front Scalp available in wrought brass, bronze, or stainless steel to deliver lasting durability across demanding applications. The use of security Torx® screws on select ML2000 Series configurations reflects a commitment to both security and reliability. Designed specifically for the ML2000 Series mortise lockset family, this component ensures a precise, manufacturer-approved fit for professional door hardware installations.