Schlage ND53-BD-LON Cylindrical Entrance Lock, Longitude Lever, SFIC Prep Less Core, 2-3/4 Inch Backset, 4-7/8 Inch Strike, Grade 1, Non Handed

The Schlage ND53-BD-LON cylindrical entrance lock is built for high-traffic commercial openings that require dependable security and long service life. As part of the ND Series, this Grade 1 lock is designed for demanding applications and features a non-handed chassis for easier field installation. The listed configuration includes the Longitude lever, SFIC prep less core, a 2-3/4 inch backset, and a 4-7/8 inch strike, making it a practical choice for institutional, office, and public building doors. Its entrance function supports secure access control while maintaining the durability and performance expected from Schlage commercial hardware.

Features

• Grade 1 cylindrical lock construction is designed for heavy-duty commercial use.
• ND53 entrance function provides keyed security for doors that need controlled access from the outside.
• Non-handed design allows the lock to be installed on either right-hand or left-hand doors.
• SFIC prep less core configuration supports small format interchangeable core systems when the core is supplied separately.
• The 2-3/4 inch backset and 4-7/8 inch strike match common commercial door preparations.

Functional Details

The ND53 entrance function is intended for openings where outside access is controlled by key while interior egress remains straightforward. This makes it well suited for offices, schools, and similar commercial spaces that need security without complicating exit from the inside.

• Entrance/office lock function.
• Outside lever locked by push button from inside.
• Turning inside lever or closing door releases button.
• Outside lever unlocked by key.
• Inside lever always free for immediate egress.