Von Duprin 990NL Night Latch P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$403.00
$229.00
Von Duprin 990NL Night Latch Trim for 98/99 Series Exit Devices – 626 Satin Chrome finish, front view

Von Duprin 990NL Night Latch Pull Trim for 98/99 Series Exit Devices, Grade 1, Non-Handed

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Model: 990NL-M 26D
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$403.00
$229.00
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Von Duprin 990NL Night Latch Trim for 98/99 Series Exit Devices

The Von Duprin 990NL is a pull trim with Night Latch (NL) function for the 98/99 Series exit device family. Night Latch / Storeroom function: the key retracts the latchbolt from the outside; the lever or knob is rigid and cannot be turned without the key. The panic bar always allows free egress from the inside. This is the correct trim for storeroom, storage room, and secured-access doors where outside entry must be key-controlled at all times.

Device Compatibility

The 990NL is available in two lock-type configurations to match your existing 98/99 Series device:

  • Mortise (M): for 98/99 Series devices with a mortise cylinder prep
  • Rim / Surface Vertical Rod / Concealed Vertical Rod (R/V): for Rim, SVR, and CVR device configurations

Select the lock type that matches your installed or specified exit device. The trim is non-handed - no handing required at time of order.

Key Specifications

  • Function: Night Latch (Storeroom) - key retracts latchbolt; outside lever/knob is rigid
  • Compatible Series: Von Duprin 98 & 99 Series exit devices
  • Lock Types: Mortise; Rim / Surface Vertical Rod / Concealed Vertical Rod
  • Handing: Non-Handed
  • Center-to-Center (CTC): 5-1/2"
  • Duty Level: Heavy Duty
  • Grade: Grade 1 (ANSI/BHMA A156.3 2014)
  • Application: Commercial

Certifications

  • ANSI/BHMA A156.3 2014 - Grade 1
  • ANSI/UL 10C (fire-rated configurations)
  • ANSI/UL 305
  • CAN/ULC-S104 (fire-rated configurations)
  • CAN/ULC-S132

Available Finishes

  • 605 - Bright Brass (US3)
  • 606 - Satin Brass (US4)
  • 612 - Satin Bronze (US10)
  • 613 - Oil Rubbed Bronze (US10B)
  • 619 - Satin Nickel (US15)
  • 622 - Matte Black (US19)
  • 625 - Bright Chrome (US26)
  • 626 - Satin Chrome (US26D / 26D)
  • 643E - Aged Bronze
  • 693/SPBLK - Black Painted
  • 695/SP313 - Dark Bronze

Resources & Downloads

98/99 Series Catalog (PDF)

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 26D – Frequently Asked Questions

1) Will the Von Duprin 990NL trim work on my 98 Series rim exit device?
Yes, the 990NL is built for the Von Duprin 98 and 99 Series family, and the rim configuration is covered by the R/V lock type. That same R/V version also fits surface vertical rod and concealed vertical rod devices. If your device is a mortise exit device, order the Mortise (M) lock type instead. The lock type is the one thing you have to get right at order time, because the cylinder prep differs between the two.
2) What is the mounting hole spacing on the 990NL night latch pull trim?
Center-to-center is 5-1/2 inches on the 990NL. That is the through-bolt spacing that has to line up with the prep already in your door, so measure the existing trim holes before you swap. Matching CTC is what decides whether this is a straight drop-in or a re-prep.
3) Can I use the 990NL on a fire rated door?
The 990NL carries ANSI/UL 10C and CAN/ULC-S104 in fire rated configurations, along with ANSI/UL 305 and CAN/ULC-S132 for panic hardware. Fire rated openings require a trim with no mechanical dogging and a latch that stays engaged, which is exactly how night latch function behaves: the outside pull is rigid and the key does the work.
4) I need key access on the outside but also want to unlock the door remotely with the access control system. Is the 990NL right?
No. The 990NL is mechanical only, key in and key out, with no electrical option. For remote release on a Von Duprin device, look at electrified exit trim: the Command Access 230L is an electrified trim built for Von Duprin V96/36/23 Series devices with 12V/24V operation and fail safe or fail secure selection. Use the 990NL where the door should simply stay key-locked all the time.
5) I am replacing worn trim on a Von Duprin 99 storeroom door. Will this go back on the same prep?
If the trim coming off is 990 series pull trim on a 98 or 99 device, yes. The 990NL uses 5-1/2 inch center-to-center mounting and is non-handed, so there is no hand to match and no new hole pattern as long as the existing prep is on that spacing. Order the lock type to match the device you have: Mortise for a mortise device, Rim/SVR/CVR for rim, surface vertical rod, or concealed vertical rod.
6) What is the closest equivalent to the Von Duprin 990NL night latch trim from another manufacturer?
The Sargent 704ET Night Latch Lever Exit Device Trim is the closest functional match. Both are Grade 1, heavy duty night latch trims where the key retracts the latchbolt. The 990NL is a pull trim with a rigid lever or knob and is non-handed; the Sargent 704ET uses a lever and is field reversible. The Sargent 704-ETL is the same night latch function in the PE Series, also Grade 1 and heavy duty. Match the trim to the exit device family already on the door - the 990NL is built for Von Duprin 98 and 99 Series devices.
7) I need a night latch trim for a Corbin Russwin ED5000 device, not a Von Duprin - what do I order?
The Corbin Russwin VT957ET nightlatch escutcheon trim is the ED5000 Series answer. It is a nightlatch function escutcheon in stamped or formed stainless steel. The Von Duprin 990NL delivers the same key-retracts-latchbolt night latch function but is a pull trim for Von Duprin 98 and 99 Series devices. Trim is device-specific, so the exit device on the door decides which one you buy.
8) What do I use instead of the 990NL if the door needs to unlock from an access control system?
Electrified trim is the route. Command Access makes the 230L electrified trim for V96, 36 and 23 Series with 12V/24V operation and fail safe or fail secure options, plus the ET15, ET25 and ET26 electrified trims - the ET26 is Grade 1 and field reversible. Falcon offers the 510L-FSA/FSE, an electrified heavy duty lever trim for 25 Series devices. The Von Duprin 990NL is purely mechanical night latch trim: the key retracts the latchbolt and there is no electrical unlock path.
9) Should I use night latch trim or a lever trim on my exit device?
Night latch pull trim like the 990NL gives no outside operation at all without a key, which suits storerooms and secured back-of-house doors. If people need to enter with a lever when the door is unlocked, you want a different function: classroom or passage trim. Among what we stock in that direction, the Corbin Russwin ED3000 3310AET is passage function trim, and the Falcon 510L is a heavy duty classroom function lever trim. Pick by how the door is meant to behave, not by looks.
10) Do I have to specify handing when ordering Von Duprin 990NL trim?
No handing to specify. The 990NL is non-handed, so the same part goes on a left hand or right hand door and one stocked item covers both. That is worth knowing if you are standardizing trim across a building and want a single line item on the order.
11) Is Von Duprin 990NL trim Grade 1?
Grade 1 under ANSI/BHMA A156.3 2014, rated heavy duty and built for commercial openings. Grade 1 is the top ANSI/BHMA tier and is normally what an institutional or government spec calls for on a door with any real traffic.
12) What is the difference between the Von Duprin 990NL and a storeroom function lever trim like the Design Hardware KIL Storeroom or Tell EDELT80?
All three keep the outside side secure until a key is used. The Von Duprin 990NL is a pull trim with a 5-1/2 inch center-to-center, Grade 1, non-handed, and the outside lever or knob stays rigid until the key retracts the latchbolt. The Design Hardware KIL Storeroom is a Grade 1 storeroom function trim with a flat lever and a Schlage C keyway for 1000 and 2000 Series exit devices. The Tell EDELT80 is a storeroom function escutcheon lever trim rated for 1-3/8 inch to 1-3/4 inch doors. Pick by the exit device family on the door and by whether you want a pull or a lever on the outside.
13) Which exit device trim should I use if the outside needs to stay unlocked and free-turning rather than key-only like the 990NL?
Go to a passage or entrance function trim. Corbin Russwin offers passage function trim across its ranges: the 3310AET for ED300 Series, the x810ET for ED4000 Series, and the x910ET heavy-duty trim for ED5200S, ED5200, ED5400 and ED5800 Series devices. The Arrow SRX01 is a passage function Sierra lever with rose for ED910, S1150 and S1250 devices. The Von Duprin 990NL is the opposite arrangement: outside entry is key-controlled at all times and the lever or knob does not turn without a key.
14) Is a dummy trim such as the Detex 02BN or Dexter ED1500T-DUMM-PULL a substitute for the 990NL night latch trim?
They look similar on the door but they do not function the same. The Detex 02BN is a dummy S-lever trim with a blank escutcheon for Value Series devices, and the Dexter ED1500T-DUMM-PULL is a Grade 1 dummy function trim with a handle pull plate for ED1500 Series devices. Dummy trim is fixed decoration with no latch operation. The Von Duprin 990NL is night latch function, Grade 1, where the key retracts the latchbolt for outside entry. Order dummy trim only where outside entry is never required.
15) What is the difference between a night latch trim like the 990NL and a classroom function trim?
Classroom function trim lets the key set the outside lever to stay unlocked or locked, so the outside handle can be left operable. Falcon's 510L is a heavy duty classroom function lever trim for 24/25 Series devices, and the 179L is a medium duty classroom trim for the 1790 Series. Accentra's 446F is a classroom function Augusta lever trim, and the Dexter ED1000T-CLRM-TP-NC is a Grade 1 classroom thumbpiece and pull plate less cylinder. The Von Duprin 990NL is night latch: the outside lever or knob is rigid at all times and only the key retracts the latchbolt, so it never sits in an unlocked state.
16) Are there simpler pull trims with a cylinder hole that do the same night latch job as the 990NL?
Yes, on other device families. The Design Hardware 2P-03NL is a Grade 1 pull trim with a cylinder hole and night latch function for 1000R and 2000R exit devices. The Tell EDPT is pull function exit device trim with a cylinder hole, less cylinder, for 1-3/8 inch to 1-3/4 inch doors. The Dexter ED1500T-PULL-NC is a Grade 1 nightlatch function trim with a raised lip pull plate. All are pull-style outside trim like the Von Duprin 990NL, which is a Grade 1 heavy duty night latch pull trim for Von Duprin 98 and 99 Series devices.
17) What night latch lever trim is available for wide stile doors as an alternative to a pull-style trim?
The Dorma YR03R is a wide stile exit device lever trim with an R lever on an escutcheon, nightlatch function, supplied less cylinder. The Accentra 121NL is also a nightlatch trim for exit devices. The Von Duprin 990NL performs the same night latch function - key retracts the latchbolt, outside handle stays rigid - as a pull trim for Von Duprin 98 and 99 Series devices, non-handed, with a 5-1/2 inch center-to-center.
18) How does the Von Duprin 990NL compare to the Pamex E9000 and Marks USA M195F storeroom trims?
All three keep the outside handle locked until a key is used. The Pamex E9000 is a Grade 1 heavy duty storeroom trim with an L3 lever, listed for 1-3/8 inch to 2 inch doors. The Marks USA M195F is a storeroom function lever and rose trim with spring loaded roses for M9900 touchbar devices. The Von Duprin 990NL is Grade 1, heavy duty, non-handed, and is built for Von Duprin 98 and 99 Series devices in mortise or in rim, surface vertical rod and concealed vertical rod configurations. Buy to the device family already installed.
19) If I want a keypad or pushbutton entry on the door instead of a keyed night latch, what replaces the 990NL?
Dormakaba covers that with pushbutton trim. The E-Plex 201U is an electronic pushbutton exit trim for wide stile doors in the E-Plex 2000 Series, and the PowerPlex P201U is exit trim for rim, mortise and SVR devices. The E-Plex 5067 is a mechanical pushbutton mortise lock in the E-Plex 5000 Series for wide stile. The Von Duprin 990NL is keyed night latch trim for Von Duprin 98 and 99 Series devices, so every outside entry is by key.
20) What finishes does the Von Duprin 990NL come in?
Eleven finishes, and every one of them is offered in both the Mortise and the Rim/SVR/CVR lock types: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 643E aged bronze, 693/SPBLK black painted, and 695/SP313 dark bronze. For matching existing openings in a building, 626 satin chrome is the common commercial standard and is stocked in both lock types.
21) Is the Falcon 212L blank escutcheon trim an alternative to the Von Duprin 990NL?
No. The Falcon 212L is a 20 Series blank escutcheon lever trim with shear pin protection, medium duty. Blank escutcheon trim has no cylinder and gives no outside entry. The Von Duprin 990NL is heavy duty Grade 1 night latch trim where the key retracts the latchbolt from the outside. Use blank escutcheon trim only where the outside is meant to stay secured with no key access.
22) Which Accentra trim matches a Von Duprin 990NL night latch on a 6000 or 1800 Series device?
Accentra's AU-441F is night latch keyed lever trim with the Augusta design, and the 121NL is a nightlatch trim for exit devices. The 426F Augusta lever escutcheon trim covers 6000 and 1800 Series devices. The Von Duprin 990NL provides night latch function as a pull trim, non-handed, for Von Duprin 98 and 99 Series devices, so it is not interchangeable across those Accentra device families.
How fast can I get the Von Duprin 990NL-M 26D 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 26D come with a warranty?
Absolutely. The Von Duprin 990NL-M 26D 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 26D?
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Product Reviews

  • 5
    Trim Handle

    Posted by Terry Helms on Aug 21st 2025

    Handle arrived on time.

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