You may also like
Von Duprin 990TP Thumbpiece Pull Trim for 98/99 Series Exit Devices, Grade 1, Non-Handed
Model: VON-990TP
Von Duprin 990TP Thumbpiece Pull Trim for 98/99 Series Exit Devices, Grade 1, Non-HandedFlexible, Modular Trim Solution for Commercial Exit Device ApplicationsThe Von Duprin 990TP is a...
Von Duprin
Starting at
$585.00
$369.12
Von Duprin 996L-NL Lever Night Latch Trim for 98/99 Series Exit Devices
Model: VON-996L-NL
Von Duprin 996L-NL Lever Night Latch Trim for 98/99 Series Exit DevicesCommercial-Grade Exit Device Lever Trim with Night Latch FunctionThe Von Duprin 996L-NL is a professional-grade lever trim...
Von Duprin
Starting at
$693.00
$485.10
Von Duprin 996K Knob Trim for 98/99 Series Exit Devices | Grade 1 | Non-Handed
Model: VON-996K
Von Duprin 996K Knob Trim for 98/99 Series Exit Devices | Grade 1 | Non-HandedModular, Heavy-Duty Knob Trim for Commercial Exit Device FlexibilityThe Von Duprin 996K is a professional-grade knob trim...
Von Duprin
Starting at
$668.00
$482.26
Von Duprin 996K-NL Knob Night Latch Trim for 98/99 Series Exit Devices
Model: VON-996K-NL
Von Duprin 996K-NL Knob Night Latch Trim for 98/99 Series Exit DevicesModular, Heavy-Duty Exit Device Trim for Commercial ApplicationsThe Von Duprin 996K-NL is a Grade 1, heavy-duty knob trim with...
Von Duprin
Starting at
$653.00
$485.85
Von Duprin 996EO Exit Only Trim Plate for 98/99 Series Exit Devices, Grade 1 Non-Handed
Model: VON-996EO
Von Duprin 996EO Exit Only Trim Plate for 98/99 Series Exit Devices, Grade 1 Non-HandedFlexible, Modular Exit Device Trim for Commercial Door ApplicationsThe Von Duprin 996EO is a commercial-grade...
Von Duprin
Starting at
$501.00
$350.70
Von Duprin 990NL Night Latch Pull Trim for 98/99 Series Exit Devices | Grade 1, Non-Handed
Modular, Investment-Protecting Trim for Commercial Exit Device Applications
The Von Duprin 990NL is a heavy-duty, Grade 1 Night Latch pull trim engineered for seamless compatibility with the 98/99 Series exit devices. Featuring a non-handed design and a 5-1/2" center-to-center measurement, this commercial-grade trim delivers the storeroom (NL) function, where the key retracts the latchbolt while the lever or knob remains rigid. Certified to ANSI/BHMA A156.3 2014 Grade 1 standards and listed under ANSI/UL 10C for fire-rated applications, the 990NL is built to meet the rigorous demands of high-traffic commercial facilities. Von Duprin’s modular design philosophy ensures this trim can be integrated into existing 98/99 Series installations cost-effectively, protecting your hardware investment well into the future.
Professional Features & Benefits
- Night Latch (Storeroom) Function: The key retracts the latchbolt while the lever or knob remains rigid, providing controlled access ideal for storeroom and restricted-entry applications.
- ANSI/BHMA A156.3 2014 Grade 1 Certified: Meets the highest commercial performance standard, ensuring long-term reliability in heavy-duty, high-traffic environments.
- Fire-Rated Compliance: Listed under ANSI/UL 10C and CAN/ULC-S104 for fire-rated configurations, supporting code-compliant installations on fire-rated door assemblies.
- Additional Certifications: Also certified to ANSI/UL 305 and CAN/ULC-S132, confirming broad compliance across North American building and safety codes.
- Non-Handed Design: Universal, non-handed configuration simplifies specification, ordering, and installation across a variety of door orientations without the need for handing-specific hardware.
- 5-1/2" Center-to-Center Spacing: Precise 5-1/2" center-to-center measurement ensures accurate fit and alignment with compatible 98/99 Series exit device configurations.
- Modular & Upgradeable Architecture: Von Duprin’s flexible, modular design allows new trim options and functions to be added to existing devices as facility needs evolve, protecting your hardware investment over time.
- 98/99 Series Trim Compatibility: The 990 pull trim platform supports five standard functions—Classroom (TP), Storeroom/Night Latch (NL), Dummy Trim (DT), Passage (TP-BE), and Exit Only (EO)—offering versatile configuration options within a single trim family.
Technical Specifications
- Series: 98 & 99 Series
- Grade: Grade 1
- Duty Level: Heavy Duty
- Product Group: Exit Devices and Trim
- Product Subgroup: Exit Device Trim
- Product Type: Exit Device Trim
- Subcategory: Exit Device Trim
- Commercial/Residential: Commercial
- Product Model: 990NL
- (CTC) Center-to-Center: 5-1/2"
- Product Function: Night Latch
- Door Hand Direction: Non-Handed
- Trim Hardware: Night Latch
- Product Category: Exit Devices and Trim
- Department: Door Hardware
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Von Duprin Quality?
Von Duprin exit device trim products deliver professional-grade reliability backed by ANSI/BHMA A156.3 2014 Grade 1 certification and compliance with ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 standards. The heavy-duty 990NL is engineered with a modular, upgradeable architecture that allows facilities to adapt and expand their hardware configurations cost-effectively as needs change. Trusted by commercial security professionals, Von Duprin products are built for demanding applications where dependable, code-compliant performance is essential.
Manufacturer Resources
Von Duprin 98/99 Series Catalog
Product Specs
- Series:
- 98 & 99 Series
- Grade:
- Grade 1
- Duty Level:
- Heavy Duty
- Product Group:
- Exit Devices and Trim
- Product Subgroup:
- Exit Device Trim
- Product Type:
- Exit Device Trims
- Subcategory:
- Exit Device Trim
- Commercial/Residential:
- Commercial
- Product Model:
- 990NL
- (CTC) Center-to-Center:
- 5-1/2"
- Product Function:
- Night Latch
- Door Hand Direction:
- Non-Handed
- Trim Hardware:
- Night Latch
- Product Category:
- Exit Devices and Trim
- Department:
- Door Hardware
Von Duprin 990NL-M US26 – Frequently Asked Questions
1) What is the Von Duprin 990NL night latch used for?
The 990NL night latch provides nighttime security for Von Duprin 98/99 series exit devices. It prevents outside access while maintaining interior egress capability. The night latch locks the outside lever or thumb piece to secure the door after hours.
2) Which Von Duprin exit devices is the 990NL compatible with?
The 990NL night latch is designed specifically for Von Duprin 98 and 99 series exit devices. It works with both 98 rim devices and 99 mortise devices. Verify your exit device series before ordering to ensure proper compatibility.
3) Does the 990NL night latch affect door handing?
The 990NL is field reversible for right hand or left hand doors. The night latch can be configured during installation to match your specific door handing. No separate left or right hand models are required.
4) What finishes are available for the 990NL night latch?
The 990NL typically comes in standard Von Duprin finishes including 613 oil rubbed bronze, 626 satin chrome, and 628 satin aluminum. Verify finish availability with your specific exit device finish for proper matching.
5) Does the 990NL night latch require power or special wiring?
The 990NL is a mechanical night latch that requires no electrical power or wiring. It operates through manual key control from the outside and thumb turn operation from the inside. This makes installation simpler with no electrical connections needed.
6) Are there building code considerations for the 990NL night latch?
Night latches must comply with egress requirements in your local building code. The 990NL maintains single motion egress from the inside while providing security from outside. Verify code compliance for your specific application and occupancy type.
7) What components are included with the 990NL night latch?
The 990NL typically includes the night latch mechanism, mounting hardware, and installation instructions. Keys and cylinders may be ordered separately depending on your keying requirements. Check the complete parts list for your specific configuration.
8) How is the 990NL night latch installed on exit devices?
The 990NL mounts to the exit device trim using the provided hardware. Installation requires basic mechanical skills and standard tools. Follow the manufacturer installation template and instructions for proper alignment and operation.
9) How do you maintain and adjust the 990NL night latch?
Regular maintenance includes lubricating the mechanism with appropriate lock lubricant and checking operation. The latch should engage and disengage smoothly with key operation. Adjust mounting if the latch binds or fails to fully engage.
10) What other Von Duprin night latch models are available?
Von Duprin offers various night latch options for different exit device series. The 996L works with other device models. Browse our Von Duprin collection for compatible night latches and exit device accessories.
11) Can the 990NL be used in high traffic applications?
The 990NL is built for commercial grade applications and can handle regular use. For extremely high traffic situations, consider the duty rating of your complete exit device system. Heavy use may require more frequent maintenance and inspection.
12) What are the key measurements for the 990NL night latch?
The 990NL is sized to work with standard Von Duprin 98/99 series trim dimensions. Verify door thickness and trim compatibility before installation. Consult the manufacturer specifications for exact measurements and clearance requirements.
How fast can I get the Von Duprin 990NL-M US26 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Von Duprin 990NL-M US26 come with a warranty?
Absolutely. The Von Duprin 990NL-M US26 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin 990NL-M US26?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Von Duprin 990NL-M US26 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.