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Sargent 8255 LE1L Office Function Mortise Lockset - LA Keyway
The Sargent 8255 LE1L is a top-tier Grade 1 Heavy-Duty Mortise Lockset engineered to provide flexible, high-level security for professional office environments, administrative suites, and commercial facilities. As a flagship model in the Sargent 8200 Series, it is widely regarded as the "strongest lock on the block," far exceeding ANSI/BHMA A156.13 standards for physical endurance. The 8255 Office Function (ANSI F04) allows users to toggle between "open" and "restricted" access throughout the business day, making it the premier choice for facilities requiring versatile entry control.
Versatile Office & Entrance Function (ANSI F04)
The 8255 function is the industry standard for private offices where accessibility needs vary by the hour. It combines the convenience of a face-mounted toggle with the security of a keyed cylinder.
- Dual Locking Control: The outside lever is made rigid (locked) or operative (unlocked) by the stop works (toggle) located on the front of the lock body.
- Keyed Entry: When the exterior lever is toggled to the locked position, entry is gained only via a physical key using the standard LA Keyway.
- Constant Free Egress: Regardless of whether the outside is locked or unlocked, the inside lever always allows for immediate exit, ensuring full compliance with NFPA 101 Life Safety Codes.
- Anti-Friction Latch: The 3/4" throw stainless steel latchbolt ensures quiet, smooth operation and reduces wear on the strike plate over time.
Heavy-Duty LE1L Escutcheon Trim
The LE1L trim configuration offers a clean, linear architectural aesthetic paired with industrial-strength protection for the door and the lock body.
- LE1 Escutcheon Plate: This full-height linear escutcheon provides a robust mounting surface that reinforces the door and protects the LA Keyway cylinder and internal components from tampering or vandalism.
- L Lever Design: The L Lever provides a sleek, modern profile that is fully ADA compliant, allowing for effortless operation without requiring a tight grip, pinch, or wrist twist.
- Unrivaled Durability: The Sargent 8200 Series is independently verified to exceed 14 million cycles—14 times the requirement for Grade 1 certification—offering an unmatched total cost of ownership.
- Anti-Sag Technology: High-carbon steel spring cartridges and heavy-duty wrought steel hubs ensure the L Lever remains perfectly horizontal, preventing "lever sag" even after decades of use.
Key Product Features
- ANSI/BHMA Grade 1 Certified: The highest industry rating for mechanical strength, operational longevity, and security.
- Office/Entrance Function (F04): Features a face-mounted toggle for easy locking management.
- Sargent LA Keyway: Ships with a 6-pin brass cylinder in the popular LA Keyway, compatible with existing Sargent master key systems.
- Fire-Rated Integrity: UL/cUL Listed for use on 3-hour fire-rated doors, essential for corridor and office safety.
- Vandal-Resistant Construction: Built on a 12-gauge heavy-duty wrought steel lock case that is zinc dichromate plated for maximum corrosion resistance.
- Universal Handing: The non-handed chassis is easily field-reversible to accommodate any door swing without opening the lock case.
Technical Specifications
| Feature | Details |
| Function | 55 Office / Entrance (ANSI F04) |
| Series | 8200 Heavy-Duty Mortise |
| Trim Style | LE1L (LE1 Escutcheon / L Lever) |
| Cylinder | 6-Pin Brass, LA Keyway |
| Backset | 2-3/4" (Standard for Mortise Locks) |
| Latchbolt | 3/4" Throw Stainless Steel Anti-Friction |
| Warranty | 10-Year Mechanical Limited Warranty |
Ordering & Installation Information
The Sargent 8255 LE1L is designed for efficient installation into standard mortise door preparations. The modular lock body allows for function changes in the field if security requirements evolve. This hardware is fully compatible with Sargent High-Security Key Systems, including Degree®, Signature, and Keso.
| Finish with BHMA code | 626 - US26D Satin Chrome or 630 - US32D Satin Stainless or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Sargent Keyways | LC - Less Cylinder or LA Keyway or 60 - LFIC less Core or 70 - SFIC less Core |
| Brand | Sargent |
| ANSI Mortise Lock Function | F04 - Office Entry |
| Trim Design | LE1L |
| Series | Sargent - 8200 Series |
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