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Description
Schlage ND50-BD-LON Cylindrical Entrance/Office Lock, Longitude Lever, SFIC Prep Less Core, 2-3/4 Inch Backset, 4-7/8 Inch Strike, Grade 1, Non Handed
The Schlage ND50-BD-LON Cylindrical Entrance/Office Lock is a heavy-duty Grade 1 lock built for commercial openings that need reliable entrance/office functionality and long service life. This configuration includes the Longitude lever design, SFIC prep less core construction for small format interchangeable core compatibility, a 2-3/4 inch backset, and a 4-7/8 inch strike. The ND50-BD-LON is non handed for easier installation and field flexibility, making it a practical choice for schools, offices, healthcare facilities, and other high-use doors where durable cylindrical performance and key system adaptability are important.
Features
ND50 entrance/office function is designed for commercial doors requiring keyed access control with free egress from the inside.
Cylindrical lock chassis provides heavy-duty performance for high-traffic applications.
Longitude lever trim offers a modern lever style used with the ND Series platform.
SFIC prep less core configuration is prepared for a small format interchangeable core and ships without the core.
2-3/4 inch backset supports door preparation requirements for deeper latch positioning.
4-7/8 inch strike is included for compatible frame installation.
Grade 1 construction meets the highest ANSI/BHMA grade for cylindrical locks.
Non handed design allows installation on either right-hand or left-hand doors.
Functional Details
The ND50 entrance/office function allows the outside lever to be locked or unlocked by key while the inside lever remains free for immediate egress. This makes it well suited for offices and similar spaces where controlled entry is needed during certain hours without restricting safe exit from the room.
Outside lever locked or unlocked by key from outside.
Inside lever always unlocked.
Included Components
This Schlage ND50-BD-LON lock includes the cylindrical lock assembly with Longitude lever trim, SFIC prep less core configuration, 2-3/4 inch backset latch, and 4-7/8 inch strike. The interchangeable core is not included.
Product Specifications
Manufacturer |
Schlage |
|---|---|
Series |
ND Series |
Model |
ND50-BD-LON |
Product Type |
Cylindrical Entrance/Office Lock |
Lever Design |
Longitude Lever |
Keying Configuration |
SFIC Prep Less Core |
Backset |
2-3/4 Inch |
Strike |
4-7/8 Inch Strike |
Handing |
Non Handed |
Grade |
Grade 1 |
ANSI Number |
F109 |
UL Listing Type |
UL listed for 3-hour fire door |
Unit of Measure |
Each |
Origin |
Made in USA or Mexico of domestic and imported materials |
Limited Warranty |
10-year mechanical warranty and 3-year electro mechanical warranty when applicable |
Chassis Type |
Heavy-duty cylindrical lock |
Technical Specifications
ANSI/BHMA Grade |
Grade 1 |
|---|---|
ANSI Function Number |
F109 |
Backset Dimension |
2-3/4 Inch |
Strike Dimension |
4-7/8 Inch |
Door Thickness Range |
1-3/8 Inch to 2-1/8 Inch |
Crossbore |
2-1/8 Inch |
Edge Bore |
1 Inch |
Latch Front |
1-1/8 Inch x 2-1/4 Inch |
Fire Rating |
3 Hour |
Handing |
Non Handed |
Cylinder Preparation |
SFIC Prep Less Core |
Lever Style |
Longitude Lever |
Lock Type |
Cylindrical Entrance/Office Lock |
Cycle Testing |
3,100,000 cycles |
Latch Throw |
1/2 Inch |
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