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Schlage ND53-BD-ATH Cylindrical Entrance Lock, Athens Lever, SFIC Prep Less Core, 2-3/4 Inch Backset, 4-7/8 Inch Strike, Grade 1, Non Handed
The Schlage ND53-BD-ATH cylindrical entrance lock is a heavy-duty Grade 1 lever lock built for commercial openings that demand dependable security and long service life. Designed with the Athens lever and SFIC prep less core configuration, this lock is well suited for facilities that require small format interchangeable core flexibility. Its non-handed design helps simplify ordering and installation, while the 2-3/4 inch backset and 4-7/8 inch strike support common commercial door prep requirements. As part of the ND Series, it is engineered for strength, durability, and consistent performance in high-use applications.
Features
- The ND53 entrance/office function allows key locking from the outside while maintaining push-button control on the inside.
- SFIC prep less core construction supports small format interchangeable core systems when the core is supplied separately.
- The non-handed chassis is designed for installation on either right-hand or left-hand doors.
- A 2-3/4 inch backset is included for standard commercial door preparation requirements.
- Schlage ND Series locks are Grade 1 certified for high-traffic commercial use.
Functional Details
The ND53 entrance/office function is designed for controlled entry from the outside with convenient locking from the inside. The inside push button locks the outside lever, and closing the door does not release the button. Entrance by key from the outside unlocks the lever, and the inside lever always remains free for safe egress.
- Push button locks outside lever.
- Turning inside lever or closing door does not release push button.
- Key in outside lever unlocks outside lever.
- Inside lever is always unlocked for immediate egress.
| Manufacturer | Schlage |
| Series | ND Series |
| SKU | ND-53-BD-ATH |
| Lock Function | Entrance/Office |
| Grade | ANSI/BHMA Grade 1 |
| Handing | Non-handed |
| Lever Design | Athens |
| Cylinder Type | SFIC prep less core |
| Backset | 2-3/4 in. |
| Strike | 4-7/8 in. strike |
| UL Listing Type | UL Listed for 3-hour fire door applications |
| ANSI Number | F109 |
| BAA Qualified | Yes |
| Origin | Made in USA |
| Unit of Measure | Each |
| Limited Warranty | 10-year limited mechanical warranty and 3-year limited electro-mechanical warranty |
| ANSI/BHMA Grade | Grade 1 |
| ANSI Function Number | F109 |
| Backset | 2-3/4 in. |
| Strike Length | 4-7/8 in. |
| Door Thickness Range | 1-3/8 in. to 2-1/8 in. |
| Latch Front | 1-1/8 in. x 2-1/4 in. |
| Standard Rose Diameter | 3-1/2 in. |
| Latch Throw | 1/2 in. |
| Fire Rating | 3 hours |
| Cycle Test | 3,100,000 cycles |
| Lever Rotation | 27 degrees maximum before retraction |
| Projection | 3-17/32 in. |












