Sargent 28-11G54 LL Dormitory / Corridor Lever Lock - Extra Heavy Duty

Function Information:

The Sargent 28-11G54 LL is a flagship Grade 1 Extra Heavy Duty Cylindrical Lockset specifically engineered for high-occupancy environments like university dormitories, military barracks, and multi-family housing corridors. As part of the prestigious Sargent 11-Line Series, this lock is built to withstand relentless daily use and the physical abuse common in student housing. The 28-prefix ensures this unit is supplied with a Sargent 6-pin LA Keyway cylinder, providing professional-grade security and seamless integration into existing facility master key systems.

Engineering Beyond the Grade 1 Standard

While most commercial hardware aims to meet the minimum ANSI/BHMA A156.2 Grade 1 requirements, the Sargent 11-Line completely redefines the category. Independent laboratory testing has confirmed that this hardware is in a class of its own:

• 12 Times the Industry Standard: Tested to exceed 10,000,000 (Ten Million) cycles. This is 12 times the 800,000-cycle requirement for Grade 1 certification, ensuring decades of maintenance-free service.
• Extreme Torque Resistance: The 11G54 is built to withstand over 3,000 in/lbs of torque on the lever. This is 3 times the force required for Grade 1 status, providing unmatched protection against vandalism and forced entry.
  
• Zero Lever Sag: Utilizing high-carbon steel spring cartridges, the LL lever design remains perfectly horizontal for the life of the product, eliminating the unsightly "droop" found in lesser hardware.
• 10-Year Limited Warranty: Sargent provides a decade of protection with no service required to maintain the warranty, offering the lowest total cost of ownership in the industry.
  

Versatile Dormitory & Corridor Function (ANSI F90)

The 54 Dormitory / Corridor Function provides a sophisticated balance of resident privacy and automatic security, ensuring that the door is never left unintentionally unlocked.

• Dual Locking Control: The outside lever is locked or unlocked by a physical key in the exterior LA Keyway cylinder or by a turn-button on the interior lever.
• Automatic Unlocking: Rotating the interior lever or closing the door automatically releases the turn-button, which prevents accidental lockouts—a critical feature for high-turnover housing environments.
  
• Fail-Safe Interior Egress: The inside lever is always free for immediate exit. Residents can never be locked inside their room, ensuring 100% compliance with NFPA 101 Life Safety and ADA accessibility codes.
  
• Deadlocking Latchbolt: Features a 1/2" throw stainless steel latch with an auxiliary deadlatch to prevent "shimming" or unauthorized manipulation when the door is closed.

Technical Specifications & Compatibility

Why Choose the Sargent 28-11G54 LL?

For facility managers at universities and large-scale residential complexes, hardware failure is a liability. The Sargent 11-Line eliminates the need for frequent replacements and emergency repairs. By choosing the 11G54, you are investing in a lockset that defines "Extra Heavy Duty" and provides the peace of mind that only a 10-million cycle lock can offer.

Ideal Applications:

• University Dormitories: Robust enough to survive student use while providing lockout-protection logic.
• Military Barracks: Grade 1 security for high-density living quarters.
• Multi-Family Corridor Doors: Professional aesthetics combined with fire-rated safety.
  
• Hospital On-Call Rooms: Providing privacy and security for medical staff in 24/7 environments.