Product Description
3347A-NL-OP-F-313-4 Von Duprin 3347A Series with 388 Night Latch Fire-Rated Concealed Vertical Rod Exit Device in Duranodic Dark Bronze
The Von Duprin 3347A-NL-OP-F-313-4 is a touch bar concealed vertical rod exit device from the 33A Series family. Night Latch with Optional Pull — outside lever locks and unlocks by key with optional pull handle. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
The 3347A concealed vertical rod design hides the rods inside the door stile for a clean look. Latches at the header and threshold for positive latching on pairs of doors. Available in 4-foot width. UL listed for fire exit hardware — no mechanical dogging on fire-rated models. ANSI/BHMA A156.3 Grade 1 certified.
Pro-Tip from Our Locksmiths: Concealed vertical rod devices on fire-rated doors must have positive latching at both the top and bottom. That means the top rod MUST reach the header strike with enough force to fully engage. If the door is sagging, fix the hinges first.
| Specifications | |
|---|---|
| Part Number | 3347A-NL-OP-F-313-4 |
| Function | NL-OP - Night Latch Optional Pull |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Concealed Vertical Rod (top and bottom bolts hidden inside door) |
| Door Width | 4-Foot (48") |
| Door Material | Aluminum, Glass, Hollow Metal, Wood |
| Outside Trim | Included |
| Warranty | 10-Year Mechanical |
- 33A Series touch bar design — smooth, quiet operation
- Concealed vertical rods hidden inside door stile for clean appearance
- UL listed for fire exit hardware — no mechanical dogging per code
- Non-handed, field-reversible — one device fits both LHR and RHR
- Dark Bronze (313/313) finish
- 10-year mechanical warranty — longest in the Von Duprin line
Works With: For wider stile doors, see the 35A Series. For the top-of-line pushpad, see the 98/99 Series. Same trim accessories work across the 33A/35A family.
Ships Same Day — Order before 2PM EST and your Von Duprin product ships the same business day. Lock Depot is an authorized Von Duprin distributor — every product includes the full manufacturer warranty. Need help? Call (877) 365-5625.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
