Corbin Russwin 670F37 Grade 1 - ML2000 AS Inside Lever

Corbin Russwin 670F37 ML2000 Series Cast AS Inside Lever Replacement Part for Mortise Locks

Commercial-Grade Mortise Lock Trim for ML2000 Series Applications

The Corbin Russwin 670F37 is a Cast "AS" Inside Lever designed specifically for use with the ML2000 Mortise Lock Series. This Grade 1 commercial replacement lever is engineered for doors with a 1-3/4 inch thickness and serves as the inside lever component in mortise lock trim configurations. Field reversible for flexible installation, this lever is a precision-fit replacement part that maintains the performance standards of the ML2000 Series in corridor and dormitory function applications.

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 and Dormitories
• Healthcare Institutions
• Hospitality and Hotel Properties
• Multi-Tenant Residential Properties
• Government and Municipal Buildings
• Industrial and Warehouse Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series lock trim components are built to Grade 1 commercial standards, delivering the precision fit and durable cast construction required for high-traffic door hardware applications. The 670F37 Inside Lever is backed by a 10 Year Limited warranty, reflecting Corbin Russwin's commitment to long-term reliability. Engineered for demanding commercial environments, this replacement part ensures continued performance and consistency within the ML2000 Mortise Lock Series.