Buy Complete Door Hardware Set
- Description
- Product Specifications
- Technical Specifications
- Document Center
Schlage ND53-PD-LON Cylindrical Entrance Lock, Longitude 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-LON cylindrical entrance lock is a heavy-duty Grade 1 lever lock built for high-traffic commercial openings where strength, security, and long service life matter. Part of the ND Series, this entrance function lock combines Schlage’s robust cylindrical chassis with a Longitude lever design and non-handed operation for easier installation and flexible use. It is keyed different and supplied with two change keys, making it a practical choice for offices, schools, healthcare facilities, and other commercial applications. With its 2-3/4 inch backset and 4-7/8 inch strike, this lock is configured for dependable performance on demanding door openings.
Features
- ND Series construction is designed for commercial-duty use with Grade 1 performance.
- Entrance function allows key control from the outside with lever operation from the inside.
- Non-handed design simplifies ordering and installation on either right- or left-hand doors.
- Longitude lever trim provides a modern lever style for commercial applications.
- Keyed different configuration includes two change keys for individual keying at the opening.
Functional Details
The ND53 entrance function is intended for doors that need outside key access with everyday lever operation for authorized users. This function is commonly used on main entry and office openings where secure access and reliable egress are both required.
- Outside lever is locked or unlocked by key.
- Inside lever is always free for immediate egress.
- Deadlocking latch helps resist credit card bypass when the door is closed.
| Manufacturer | Schlage |
|---|---|
| Series | ND Series |
| SKU | ND-53-PD-LON |
| Lock Type | Cylindrical lock |
| Function | Entrance |
| Grade | ANSI/BHMA A156.2, Series 4000, Grade 1 |
| Handing | Non-handed |
| Backset | 2-3/4 inch |
| Strike | 4-7/8 inch strike |
| Cylinder | Schlage C keyway |
| Keying | Keyed different |
| Keys Included | 2 change keys |
| UL Listing Type | UL listed for 3-hour fire door |
| BAA Qualified | Yes |
| Limited Warranty | 10-year limited mechanical warranty and 3-year limited electro-mechanical warranty |
| ANSI Number | F109 |
|---|---|
| Cycle Test | 3,100,000 cycles |
| Door Thickness | 1-3/8 inch to 1-3/4 inch standard |
| Backset | 2-3/4 inch |
| Latch Front | 1-1/8 inch x 2-1/4 inch |
| Strike Size | 1-1/4 inch x 4-7/8 inch |
| Latch Throw | 1/2 inch |
| Lever Projection | 2-15/16 inch |
| Rose Diameter | 3-7/16 inch |
| Cross Bore | 2-1/8 inch |
| Edge Bore | 1 inch |
| Fire Rating | 3 hour |












