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Schlage ND91-PD-SPA Vandlgard Entrance/Office Cylindrical Lock, Sparta Lever, Schlage C Keyway Keyed Random, 2 Keys, 2-3/4 Backset, 4-7/8 Inch Strike, Grade 1, Non Handed
The Schlage ND91PD-SPA is a Grade 1 heavy-duty cylindrical lock built for high-traffic commercial openings that demand durability and security. Featuring Vandlgard technology, the outside lever rotates freely when locked to protect the internal mechanism from forced entry and abuse, making it ideal for schools, healthcare facilities, and office buildings. This entrance/office function comes equipped with the Sparta (SPA) lever and Schlage "C" keyway, supplied keyed random with two keys. Its non-handed design simplifies installation, while the 2-3/4-inch backset and 4-7/8-inch strike ensure a versatile fit across standard commercial door preparations. Backed by proven reliability, it delivers dependable performance year after year.
Features
- Vandlgard technology allows the outside lever to rotate freely when locked, resisting vandalism and forced entry.
- Grade 1 certified for the highest level of commercial durability.
- Sparta (SPA) lever design offers a clean, contemporary appearance.
- Schlage "C" keyway supplied keyed random with two keys included.
- Non-handed construction fits both left- and right-hand doors.
- Standard 2-3/4-inch backset with a 4-7/8-inch strike plate.
Functional Details
The ND91PD entrance/office function provides secure access control with a locking outside lever that can be operated by key. When locked, the Vandlgard lever spins freely to protect the lock from abuse, while turning the inside key or thumbturn controls entry.
- Latchbolt operated by lever from either side except when outside lever is locked by key.
- Outside lever locked and unlocked by key.
- When outside lever is locked, latchbolt is retracted by key outside or by rotating inside lever.
- Inside lever always free for immediate egress.
| Manufacturer | Schlage |
|---|---|
| SKU | ND91PD-SPA |
| Function | Entrance/Office |
| Lever Style | Sparta (SPA) |
| Grade | ANSI/BHMA Grade 1 |
| Keyway | Schlage "C" |
| Keying | Keyed Random, 2 Keys Included |
| Handing | Non-Handed |
| Origin | USA |
| Unit of Measure | Each |
| ANSI Number | A156.2 Series 4000 |
| Limited Warranty | Three-Year Limited Warranty |
| Backset | 2-3/4 inches |
|---|---|
| Strike | 4-7/8 inch ANSI strike |
| Latch Type | Standard 1/2 inch throw |
| Door Thickness | 1-3/8 inch to 2 inch standard |
| Cylinder | 6-pin (5-pin standard) |
| Chassis | Cylindrical, through-bolted |
| Bolt Projection | 1/2 inch |
| Rose Diameter | 3-1/2 inches |
| Lever Return | Free-spinning when locked (Vandlgard) |
| Door Range | Standard commercial door prep (161 cutout) |












