Schlage L9070J 06N 643E Classroom Mortise Lock

Product Description

The SCHLAGE L9070J 06N 643E is a Grade 1 classroom mortise lock designed for full-size interchangeable core (FSIC) cylinders, supplied less core so the installer provides the core on site. It features the 06 lever trim on the N escutcheon and is finished in Aged Bronze (643E). The classroom function keeps the outside lever locked by default, allowing egress from the inside at all times while restricting entry from the exterior without a key. This makes it a standard choice for K-12 and higher-education facilities where controlled access and life-safety egress must coexist. Licensed locksmiths and institutional hardware specialists are the primary installers.

This lock is suited for interior corridor doors in classroom, laboratory, and office environments where a dedicated classroom security function is required. The FSIC less-core configuration gives facilities management flexibility to specify their own interchangeable core from a compatible keying system during construction or retrofit. The field-reversible handing means the lock body can be oriented for left-hand or right-hand doors without ordering a separate unit, reducing lead-time risk on multi-door projects.

Key Features

• Grade 1 ANSI/BHMA heavy-duty mortise lock construction for institutional and commercial doors
• Classroom security function: outside lever locked by default, free egress from inside at all times
• FSIC less-core design accepts full-size interchangeable cores specified by the facility
• 06 lever style on N escutcheon for a low-profile, institutional appearance
• Aged Bronze (643E) finish for consistent trim coordination
• Field reversible handing without disassembly of the lock body

Compatibility

Designed as an OEM-style replacement or new-installation mortise lock for commercial and institutional doors requiring a Grade 1 classroom function with FSIC cylinder preparation.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware technician familiar with mortise lock preparation standards. Confirm door thickness and backset dimensions before installation and verify the mortise pocket dimensions match the lock body. Refer to ANSI A156.13 and applicable local building codes for hardware function and fire-door labeling requirements. Do not install or remove the core until the lock body is fully secured in the door.