Marks USA MAR5SS19LF 5SS19LF LifeSaver Anti-Ligature Privacy Lever Mortise Lock - Grade 1, Institutional, Bright Stainless Steel

Marks USA 5SS19LF LifeSaver Anti-Ligature Privacy Lever Mortise Lock — Grade 1 Institutional, Bright Stainless Steel

The Marks USA 5SS19LF 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 rose design in Bright Stainless Steel (Polished Stainless), this mechanical mortise lock accommodates a required door thickness of 1-3/4 in with a 2-3/4 in backset and a 4-7/8 in curved lip strike plate. Constructed from stainless steel with a stamped steel case measuring 1-1/16", the 5SS19LF delivers non-handed installation flexibility and is cULus Listed with BHMA and ANSI compliance, including a 3-hour fire rating and full ADA compliance.

Key Features

• Anti-Ligature Design: Ligature-resistant SS19 lever and rose configuration engineered to reduce self-harm risks in behavioral health and detention facility applications.
• Door Thickness Compatibility: Designed for a required door thickness of 1-3/4 in (maximum 1-3/4 in) for precise institutional door integration.
• Dimensional Specifications: Features a 2-3/4 in backset, 4-7/8 in curved lip strike plate, 9/16" latch throw, and a front size of 1-1/8" x 2-1/4" for accurate door preparation.
• Grade 1 Construction: Stainless steel body with stamped steel case (1-1/16") and SS19 rose, providing institutional-grade durability for high-demand environments.
• Clutch Lever with Needle Bearings: Internal clutch lever and needle bearing mechanism deliver smooth, reliable operation and resistance to forced-entry torque.
• Non-Handed Installation: Non-handed design simplifies installation and reduces inventory requirements across mixed door configurations.
• Deadlocking Latch: Dead bolt / deadlocking latch type (ANSI Function F75) with latch retracted by levers at all times for passage/hall/closet function.
• Marks C Keyway: Outside locking/unlocking access via Marks C keyway; includes 2 keys. Keyed outside access with privacy function.
• Lifetime Mechanical Warranty: Backed by Marks USA's lifetime mechanical warranty for long-term confidence in institutional deployments.

Certifications & Compliance

• ANSI/BHMA Grade 1
• cULus Listed
• UL Listed — 3-Hour Fire Rating
• ADA Compliant
• Ligature-Resistant (Behavioral Health & Detention Facility Rated)
• Marks USA 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 Centers and Correctional Institutions
• Healthcare Institutions Requiring Ligature-Resistant Hardware
• Government and Municipal Buildings
• Educational Facilities with Institutional Security Requirements
• Commercial Office Buildings with High-Traffic Corridors
• Multi-Tenant Residential Properties with Institutional Standards

Why Marks USA 5SS19LF?

Marks USA 5SS19LF LifeSaver mortise locksets are purpose-built for the most demanding institutional environments, combining a ligature-resistant SS19 lever design with Grade 1 stainless steel construction, clutch lever mechanics, and needle bearings for dependable long-term performance. Certified cULus Listed, ANSI/BHMA compliant, ADA compliant, and rated for 3-hour fire applications, the 5SS19LF meets the rigorous safety and code requirements of behavioral health and detention facility deployments. Backed by Marks USA's lifetime mechanical warranty, this lockset delivers the professional-grade reliability that institutional specifiers and security professionals require.