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Description
Schlage ND53-PD-ATH Cylindrical Entrance Lock, Athens Lever, Schlage "C", Keyed Different, [2] Change Keys, 2-3/4 Inch Backset, 4-7/8 Inch Strike, Grade 1, Non Handed
The Schlage ND53-PD-ATH cylindrical entrance lock is a heavy-duty Grade 1 lock designed for high-use commercial openings where keyed entry and dependable durability matter. Built as part of the ND Series, this entrance function lock combines strong mechanical performance with the clean look of the Athens lever design. Its non-handed construction helps simplify installation, while the 2-3/4 inch backset and 4-7/8 inch strike support common commercial door preparations. With keyed different operation, a Schlage C keyway, and two change keys included, this lock is a practical choice for offices, schools, healthcare facilities, and other demanding environments.
Features
- ND Series cylindrical lock construction is engineered for commercial applications requiring Grade 1 strength and long service life.
- Entrance function provides keyed access control for exterior or controlled interior openings.
- Non-handed design allows the lock to be installed on either right-hand or left-hand doors.
- Schlage C keyway keyed different configuration supports standard key control for individual openings.
- The lock is supplied with a 2-3/4 inch backset and 4-7/8 inch strike for common commercial door setups.
Functional Details
The ND53 entrance function is intended for doors that need outside keyed access and free egress from the inside. This function is commonly used on main entry and perimeter doors where controlled entry is required without restricting exit.
- Outside lever locked by push button on inside.
- Inside lever always free for immediate egress.
- Turning inside lever or closing door releases push button lock.
- Outside lever unlocked by key until push button is manually locked again.
Included Components
This lock is supplied in a keyed different configuration with a Schlage C keyway and includes two change keys. It is also specified with a 2-3/4 inch backset and 4-7/8 inch strike.
Product Specifications
| Manufacturer | Schlage |
| Series | ND Series |
| SKU | ND-53-PD-ATH |
| Lock Function | Entrance |
| Grade | ANSI/BHMA Grade 1 |
| Origin | Made in USA |
| Unit of Measure | Each |
| UL Listing Type | UL listed for 3-hour fire door |
| ANSI Number | F109 |
| BAA Qualified | Yes |
| Limited Warranty | 10-year limited mechanical warranty and 3-year limited electro-mechanical warranty |
Technical Specifications
| Backset | 2-3/4 in |
| Strike | 4-7/8 in |
| Door Thickness Range | 1-3/8 in to 2-1/8 in |
| Cross Bore | 2-1/8 in |
| Edge Bore | 1 in |
| Latch Front | 1-1/8 in x 2-1/4 in |
| Latch Throw | 1/2 in |
| Cylinder | 6-pin |
| Lever Projection | 3-17/32 in |
| Rose Diameter | 3-1/2 in |
| Fire Rating | 3 hour |
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