Sargent 70-8225 Lnl 26D Dormitory Exit Mortise Lock

Product Description

The SARGENT 70-8225 LNL 26D is a Grade 1 heavy-duty mortise lock designed for dormitory and exit function applications. It features an LN rose, an L lever, and an SFIC (Small Format Interchangeable Core) prep that ships less core, allowing the installer to supply the core separately. The lock is field reversible, making it suitable for both left- and right-hand door swings without special ordering. It carries a 2-hour fire rating (Label B) and meets Buy American Act requirements. Finish is Satin Chrome (26D). Licensed locksmiths and commercial door hardware installers are the primary trade for this product.

This mortise lock is intended for commercial and institutional doors, particularly dormitory corridors, residence hall suites, and exit-controlled openings where the outside lever is locked by key and free egress is required from the inside. It is designed for doors with a 1.75-inch thickness and a 2.75-inch backset. The ANSI function designation is F13 Dormitory. The included strike number is 82-0110 with a strike width of 1.25 inches. The lock face measures 8 inches by 1.25 inches.

Key Features

• Grade 1 heavy-duty construction per ANSI standards for high-traffic commercial use
• SFIC prep less core - accepts Small Format Interchangeable Core cylinders, sold separately
• Field reversible handing - no factory modification required for left- or right-hand installation
• 2-hour fire rating (Label B) for use on rated door assemblies
• 3/4-inch latch and 1-inch deadbolt bolt protection
• Buy American Act (BAA) qualified, manufactured in the USA
• 10-year limited warranty

Compatibility

Designed for commercial and institutional doors 1.75 inches thick with a 2.75-inch backset. Compatible with Small Format Interchangeable Core cylinders. Includes strike number 82-0110. Suitable for ANSI F13 dormitory function openings on fire-rated and non-rated door assemblies.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware technician familiar with ANSI mortise lock prep standards. Verify door thickness and backset before installation, and confirm the door and frame assembly are rated to match the lock's fire rating where required. The lock ships less core - the SFIC core must be ordered and installed separately before the lock is functional. Follow the door manufacturer's prep template and applicable building and fire code requirements for the specific opening.