Sargent 8237 Lnb 26 Classroom Mortise Lock Bright Chrome

Product Description

The SARGENT 8237 LNB 26 is a Grade 1 commercial mortise lock designed for classroom security applications. It features the B lever handle paired with the LN rose trim and a conventional cylinder, delivering a complete lockset ready for installation in commercial door prep. The unit is field reversible, allowing the latch hand to be changed on the job without special tools or additional parts. Finished in Bright Chrome (finish 26), it suits institutional and educational environments where durable, code-compliant hardware is required. Licensed locksmiths, commercial door hardware installers, and facilities maintenance professionals are the typical trades handling this product.

This mortise lock is suited for classroom corridor doors in K-12 schools, universities, and similar institutional settings where the lockset must allow free egress from the room while restricting entry from the corridor. The classroom function means the lock is operable from the inside at all times via the lever, while the exterior lever is locked or unlocked by key. An ASA standard strike is included for straightforward frame preparation. The Bright Chrome finish coordinates with standard commercial hardware in educational and government buildings.

Key Features

• Grade 1 ANSI commercial duty construction for high-traffic institutional applications
• Classroom lockset function: free egress from inside, key-controlled entry from corridor
• Field reversible handing eliminates the need to order separate left- or right-hand versions
• B lever with LN rose trim in Bright Chrome (finish 26) for a clean institutional appearance
• Conventional cylinder accepts standard commercial keyways for existing keying systems
• ASA standard strike included for compatibility with common door frame preparations

Compatibility

Designed as an OEM-style replacement or new-installation mortise lock for commercial and institutional doors prepared to accept a standard SARGENT 8200 series mortise lock chassis.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware technician familiar with mortise lock pocket preparation and ANSI door prep standards. Confirm door thickness and backset before installation and verify the door prep matches the mortise case dimensions. Secure all fasteners to the door manufacturer's specifications and test latch operation, cylinder function, and lever return before returning the door to service. Consult applicable building codes and fire-rated door assembly requirements when installing hardware on rated openings.