Schlage ND70JD Rho 643E Grade 1 Classroom Lock

Product Description

The SCHLAGE ND70JD RHO 643E is a Grade 1 commercial classroom lock featuring the Rhodes lever trim and an Aged Bronze (643E) finish. It ships prepped for Schlage Full Size Interchangeable Core (FSIC) installation but does not include the core, allowing facilities to supply their own keying system. This is a heavy-duty cylindrical lock designed for high-traffic commercial and institutional doors. It is non-handed, meaning it installs on doors of either hand without modification. Licensed locksmiths, security contractors, and commercial door hardware installers are the typical trades for this product.

This lock is suited for classroom security applications in K-12 schools, universities, government facilities, and commercial buildings. The classroom function keeps the outside lever locked at all times unless retracted by key, while the inside lever remains free-egress at all times. This function is specifically designed to meet life-safety egress requirements while providing controlled exterior access. The FSIC prep allows facilities managers to integrate the lock into an existing large-format interchangeable core master key system.

Key Features

• Grade 1 ANSI/BHMA rating for heavy-duty commercial door applications
• Rhodes (RHO) lever design with Aged Bronze 643E finish
• Classroom lockset function: outside lever locked by default, free egress on inside lever
• FSIC prep accepts Schlage Full Size Interchangeable Core - core not included
• Non-handed design installs on left-hand or right-hand doors without field modification

Compatibility

Designed as an OEM-style cylindrical lock replacement or new-installation unit for commercial and institutional doors prepped for Schlage Full Size Interchangeable Core cylinders. Core must be sourced and specified separately.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware installer familiar with ANSI cylindrical lock prep standards. Verify door prep dimensions - backset, cross-bore, and face-bore - match the lock requirements before installation. Ensure the door and frame meet applicable building and fire codes, including IBC egress requirements for the classroom function. Do not install the core until the lockset is fully mounted and the door operation is confirmed.