Marks USA MAR5SS19N 5SS19N LifeSaver Anti-Ligature Passage Lever Mortise Lock - Grade 1, Institutional, Bright Stainless Steel

Marks USA 5SS19N LifeSaver Anti-Ligature Passage Lever Mortise Lock — Grade 1 Institutional, Bright Stainless Steel

The Marks USA 5SS19N LifeSaver is a Grade 1 institutional mortise lockset engineered specifically for behavioral health and detention facility environments where ligature resistance is a critical safety requirement. Featuring the SS19 lever and rose design in Bright Stainless Steel (Polished Stainless), this passage-function lock accommodates doors with a required thickness of 1-3/4 in and a 2-3/4 in backset, with a 4-7/8 in curved lip strike plate. Constructed from stainless steel with a stamped steel case measuring 1-1/16", the 5SS19N is cULus Listed, BHMA certified, UL Listed for 3-hour fire rating, and fully ADA compliant — delivering the durability and safety performance demanded by the most challenging institutional applications.

Key Features

• Anti-Ligature Design: Ligature-resistant SS19 lever and rose configuration engineered to reduce self-harm risks in behavioral health and detention facility environments.
• Door Thickness Compatibility: Designed for doors with a required thickness of 1-3/4 in (maximum 1-3/4 in) for precise institutional door compatibility.
• Passage Function (ANSI F75): Latch retracted by levers at all times — no keying required — ideal for corridor and passage applications per ANSI Function F75.
• Grade 1 Construction: Stainless steel body with stamped steel case (1-1/16") and SS19 rose, featuring clutch lever and needle bearings for long-term heavy-duty performance.
• Precise Dimensional Specifications: 2-3/4 in backset, 4-7/8 in curved lip strike, 9/16" latch throw, and 1-1/8" x 2-1/4" front size for accurate door preparation.
• Non-Handed Design: Non-handed configuration simplifies installation and reduces inventory requirements across multi-door institutional projects.
• Marks C Keyway: Utilizes the Marks C keyway system for consistent keying compatibility within Marks USA hardware programs.
• Lifetime Mechanical Warranty: Backed by Marks USA's lifetime mechanical warranty, providing long-term confidence for institutional procurement.

Certifications & Compliance

• ANSI/BHMA Grade 1
• cULus Listed
• UL Listed — 3-Hour Fire Rating
• ADA Compliant
• Ligature-Resistant
• Lifetime Mechanical Warranty

Technical Specifications

• Series: 5SS19 Series
• Latch Throw: 9/16"
• Grade: Grade 1
• Product Subgroup: Bored Locksets
• Product Type: Cylindrical Locks
• Subcategory: Cylindrical Locks
• ANSI/BHMA: ANSI/BHMA, UL Listed
• Function Description: Latch retracted by knobs/levers at all times
• Front Size: 1-1/8" x 2-1/4"
• ADA Compliant: Yes
• Keyed: No
• ANSI Function: F75
• Product Attribute: Cylindrical Locks
• Product Function: Passage/Hall/Closet
• Latch Type Specification: Deadlocking
• Backset (Distance): 2-3/4"
• Department: Door Hardware

Typical Applications

• Behavioral Health Facilities and Psychiatric Units
• Detention and Correctional Facilities
• Institutional Healthcare Environments
• Mental Health Treatment Centers
• Government and Municipal Buildings
• Educational Institutions with Specialized Safety Requirements
• Commercial Buildings Requiring Grade 1 Fire-Rated Hardware

Why Marks USA 5SS19N?

Marks USA 5SS19N LifeSaver mortise locksets are purpose-built for institutional environments where safety and durability cannot be compromised. The stainless steel construction with clutch lever and needle bearings, combined with cULus Listing, 3-hour fire rating, and BHMA Grade 1 certification, ensures this lockset meets the rigorous demands of behavioral health and detention applications. Backed by a lifetime mechanical warranty, the 5SS19N delivers the professional-grade reliability that institutional facility managers and security professionals depend on.