Marks USA MAR195DA 195DA Vestibule Clutched Lever Lockset — Grade 1, Marks C Keyway, 6 Pin, ADA Compliant

Marks USA 195DA Vestibule Clutched Lever Lockset — Grade 1, Marks C Keyway, 6 Pin, ADA Compliant

The Marks USA 195DA is a Grade 1 commercial-grade vestibule clutched lever lockset from the 195 Series, engineered for demanding high-traffic applications. Supplied with 6-pin cylinders in Marks "C" keyway and 2 nickel-silver keys, this lockset features a cast stainless steel retractor with bronze roller bearings for ultra-high strength, smooth operation, and long life. The innovative clutch mechanism disengages the outside lever when locked, allowing it to turn freely without opening the latch — dramatically reducing torque stress compared to rigid lever designs. Rated for doors 1-5/8" to 1-7/8" thick (K1704 spacer required for 1-3/8" doors), this UL Listed, 3-hour fire-rated lockset is ADA compliant and ANSI/BHMA certified for professional commercial installations.

Key Features

• Exceptional Torque Resistance: Withstands torque of 1,800 inch-pounds — over twice the ANSI/BHMA (1996) test value — for superior protection against forced entry and abuse.
• Outstanding Cycle Durability: Life tested over 6 million cycles and fully operational after testing, ensuring long-term reliability in the highest-traffic commercial environments.
• Clutch Mechanism Protection: "The Clutch" disengages the outside lever when locked, allowing it to turn freely without actuating the latch, reducing torque on the lever and preventing the failures common to rigid lever designs.
• Breakaway Handle Design: American and Crescent design breakaway handles protect against excessive abuse and vandalism.
• Backset & Latch Specifications: Standard 2-3/4" backset; optional 2-3/8", 3-3/4", and 5" backsets available. Latch #1834 features a 1-1/8" x 2-1/4" front, 9/16" throw, and stainless steel nose.
• Door Thickness Compatibility: Fits doors 1-5/8" to 1-7/8" thick; use K1704 spacer for 1-3/8" doors.
• Electrified Function Options: 100% duty cycle; 24V/AC supplied with bridge rectifier; 24V/DC at 0.21 Amps standard; 12V/DC optional. Request to Exit (REX) switch available: single pole, double throw, 3 amp, 125 AC, wired normally open or normally closed.
• Vibration-Proof Thru-Bolt Mounting: Only two #10 epoxy-coated thru-bolts required for secure, vibration-proof installation. Rose is thru-bolted, 3-7/16" diameter, spring loaded.
• Lever & Strike Construction: Levers are solid cast Zamac with 1/2" return. Strike #1135 features a 4-7/8" ASA curved lip.
• Wide Function Availability: Available in Vestibule, Passage, Privacy, Classroom, Storeroom, Institution, Corridor, Hospital/Privacy, Classroom Intruder, and many more functions.

Certifications & Compliance

• ANSI/BHMA Certified — Exceeds ANSI/BHMA (1996) torque test value by over 2x
• UL Listed
• 3-Hour Fire Rated
• ADA Compliant
• Grade 1 Commercial Performance

Technical Specifications

• Series: 195 Series
• Product Group: Mechanical Locks
• Product Subgroup: Bored Locksets
• Product Type: Cylindrical Locks
• Subcategory: Cylindrical Locks
• ANSI/BHMA: ANSI/BHMA, UL Listed
• Commercial/Residential: Commercial
• Lock Type: Cylindrical
• Function Description: Latch retracted by knobs/levers at all times
• ADA Compliant: Yes
• Keyed: No
• ANSI Function: F75
• Product Attribute: Cylindrical Locks
• Product Function: Passage/Hall/Closet
• Latch Type Specification: Deadlocking
• Product Category: Mechanical Locks
• Department: Door Hardware
• PDF:Marks USA Product Catalog: https://zensupply.com/content/pdf/lcn/MARKS_catalog_2020

Typical Applications

• Commercial Office Buildings and Vestibule Entries
• Educational Facilities — Classrooms and Corridors
• Healthcare Institutions — Hospital and Privacy Applications
• Retail Establishments and Store Doors
• Government and Municipal Buildings
• Multi-Tenant Residential and Mixed-Use Properties
• Industrial and Institutional Facilities Requiring High-Security Lever Locksets

Why Marks USA 195DA?

Marks USA 195DA lever locksets deliver professional-grade reliability through a cast stainless steel retractor with bronze roller bearings, a patented clutch mechanism rated to withstand 1,800 inch-pounds of torque, and a life cycle rating exceeding 6 million operations. UL Listed and 3-hour fire rated, the 195DA is engineered for the most demanding commercial door applications where long-term performance and security are non-negotiable.