Von Duprin 555NL Night Latch E...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,050.00
$768.38
Von Duprin 555/5556NL Night Latch Trim Function Wood/Metal Door, Trim for 55 Series Exit Devices

Von Duprin 555NL Night Latch Exit Device Trim for 55 Series Wood & Hollow Metal Door Compatible

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Model: 555NL 26D RHR
$1,050.00
$768.38
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,050.00
$768.38
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Von Duprin 555NL Night Latch Exit Device Trim for 55 Series Wood & Hollow Metal Door Compatible

Professional Night Latch Trim Solution for Narrow Stile 55 Series Exit Devices

The Von Duprin 555NL Night Latch Exit Device Trim is purpose-built for use with Von Duprin 55 Series Exit Devices, offering a reliable and versatile trim solution for both hollow metal doors (555NL) and wood doors (556NL). Rated Grade 1 Heavy Duty for demanding commercial environments, this non-handed trim features a projection of 2 5/8" x 1 7/8" and is designed to complement the narrow stile profile of the 55 Series with a classic aesthetic ideal for retro-inspired architecture and historical buildings. The flexible design supports field reversible handing and accommodates a range of surface-mounted vertical rod and rim applications.

Professional Features & Benefits

  • Dual Door Compatibility: The 555NL model is designed for hollow metal doors while the 556NL model is engineered for wood doors, providing a tailored fit for a variety of commercial door constructions.
  • Grade 1 Heavy Duty Rating: Certified Grade 1 Heavy Duty for superior performance and long-term reliability in high-traffic commercial applications.
  • Night Latch Trim Function: Delivers dedicated night latch functionality, allowing facilities to control after-hours access while maintaining code-compliant egress through the 55 Series exit device.
  • Non-Handed Design: Non-handed configuration simplifies ordering and installation, eliminating the need to specify door handing at the time of purchase.
  • Narrow Stile Profile: Engineered specifically for the 55 Series narrow stile exit device, maintaining a classic look well-suited for retro-inspired and historical building aesthetics.
  • Flexible Field Sizing & Handing: Supports field reversible handing and flexible field sizing for versatile installation across multiple surface-mounted vertical rod and rim applications.
  • Universal Center Case Compatibility: The 55 Series universal center case design allows users to change or upgrade features on their current device as security needs evolve, protecting long-term investment.
  • Product Projection: Trim projects 2 5/8" x 1 7/8" for a consistent, professional appearance on the door face.

Technical Specifications

  • Subcategory: Exit Device Trim
  • Series: 55 Exit Trim
  • Grade: Grade 1
  • Duty Level: Heavy Duty
  • Compatibilty: 55 Series Exit Devices
  • Product Group: Exit Devices and Trim
  • Product Subgroup: Exit Device Trim
  • Product Type: Exit Device Trim
  • Commercial/Residential: Commercial
  • Product Model: 555NL, 556NL
  • Product Function: Night Latch Trim
  • Door Hand Direction: Non-Handed
  • Product Projection: 2 5/8" x 1 7/8"
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Historical and Retro-Inspired Architecture
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin exit device trim products are engineered with robust materials and unique design principles that extend product longevity and protect facility investment over time. The 55 Series universal center case allows security configurations to evolve alongside changing facility needs, while the Grade 1 Heavy Duty rating ensures dependable performance in the most demanding commercial environments. Backed by industry-leading expertise and comprehensive support resources, Von Duprin delivers professional-grade door hardware solutions trusted across commercial, institutional, and historical building applications.

Manufacturer Resources

Von Duprin 55 Series Catalog

Product Specs

Subcategory:
Exit Device Trim
Series:
55 Exit Trim
Grade:
Grade 1
Duty Level:
Heavy Duty
Compatibility:
55 Series Exit Devices
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Device Trim
Product Type:
Exit Device Trims
Commercial/Residential:
Commercial
Product Model:
555NL, 556NL
Product Function:
Night Latch Trim
Door Hand Direction:
Non-Handed
Product Projection:
2 5 /8" x 1 7 /8"
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 555NL 26D RHR – Frequently Asked Questions

1) Will the Von Duprin 555NL night latch trim work on my wood door, or do I need a different part number?
Door construction decides the model. The 555NL is the hollow metal door version and the 556NL is the wood door version, so a wood door needs the 556NL. Both are ordered off the same night latch trim family for Von Duprin 55 Series exit devices, and the door type is the choice you make at order time rather than a field adjustment.
2) Do I have to specify handing when ordering the 555NL night latch trim?
The trim itself is non-handed and field reversible, so it does not lock you into one door swing. The order form still carries a handing choice, LHR or RHR, matched to the device on your opening. Since the trim reverses in the field, a property manager stocking a spare is not committing to one door.
3) I need night latch exit trim but my device is a Sargent, not a Von Duprin. What should I use?
Trim is device specific, so a Von Duprin 555NL will not go on a Sargent device. Sargent's own night latch trims are the match: the 704ET is the field reversible Grade 1 night latch lever trim for the 700 Series, the 704-ETL is the PE Series night latch lever with key retract, and the 744 covers 8700 and 8900 Series surface vertical rod and mortise devices with key retracts latch. Pick by the device series stamped on the touchbar.
4) I need a night latch trim for a surface vertical rod or mortise device, not a 55 Series rim device - what should I use?
The Von Duprin 555NL is trim for 55 Series exit devices, so it is not the part for a different manufacturer's vertical rod or mortise device. Sargent's 744 is a Grade 1 night latch trim built for surface vertical rod and mortise devices in the 8700 and 8900 Series, with freewheeling trim where the key retracts the latch. Corbin Russwin's VT957ET is a nightlatch escutcheon trim in stamped or formed stainless steel for ED5000 Series devices. Match the trim to the device family you already have hung on the door.
5) Can I get an electrified version of the 555NL for access control?
The Von Duprin 555NL is a mechanical night latch trim, non-handed, for 55 Series exit devices. Where the opening needs to be released from a card reader or access control panel, Command Access builds electrified exit trim with 12V/24V operation and fail safe or fail secure options: the ET15, ET25 and ET26 in their respective series, and the 230L for V96/36/23 Series devices. The ET26 is Grade 1 with a field reversible design. Dormakaba's PowerPlex P201U is exit trim for rim, mortise and SVR devices in the PowerPlex 2000 Series, and the E-Plex 201U is an electronic pushbutton exit trim for wide stile openings. Each of these is tied to its own device family, so confirm what is on the door.
6) What is the closest equivalent to a Von Duprin 555NL night latch trim from another manufacturer?
Sargent's 704ET night latch lever exit device trim is the nearest peer by function and rating. Both are night latch trim: the 555NL is Grade 1 heavy duty and non-handed, and the 704ET is Grade 1 heavy duty with field reversible operation, so like the 555NL it does not need handing called out as a separate part. The difference is the grip: the 555NL is a night latch trim with a 2 5/8 inch by 1 7/8 inch projection built for the Von Duprin 55 Series narrow stile device, while the 704ET is a lever trim for Sargent 700 Series devices. Exit trim is device specific, so the 704ET goes on a Sargent device and the 555NL goes on a 55 Series.
7) Is a passage or dummy exit trim the same thing as the 555NL night latch trim?
No. The Von Duprin 555NL is night latch trim, meaning it takes a cylinder and the key retracts the latch so the door can be locked down after hours. A passage trim such as the Corbin Russwin 3310AET for ED300 Series devices, the x810ET for ED4000 Series, or the x910ET for ED5200S/ED5200/ED5400/ED5800 Series is passage function - it operates the device from outside without a key. The Detex 02BN is dummy function, an S-lever on a blank escutcheon for Value Series devices, which is a pull only and does not operate the latch at all. If after-hours key control is the reason for the order, passage and dummy trim will not do it.
8) Our spec calls for classroom or storeroom function trim - does the 555NL meet it?
No. The Von Duprin 555NL is night latch function. Classroom function trim is a different peer: the Falcon 510L is a heavy duty classroom function trim with a lever handle for 24/25 Series devices, and the Accentra 446F is classroom function with an Augusta lever. For storeroom function, the Design Hardware KIL storeroom trim is Grade 1 for 1000 and 2000 Series devices with a Schlage C keyway and flat lever, the Pamex E9000 is a Grade 1 storeroom trim with an L3 lever and a 1-3/8 inch to 2 inch door thickness range, and the Tell EDELT80 is a storeroom escutcheon lever trim for 1-3/8 inch to 1-3/4 inch doors. If the drawing says classroom or storeroom, the night latch trim will be rejected at inspection.
9) Our spec requires Grade 1 heavy duty trim - which alternatives hold that rating?
The Von Duprin 555NL is Grade 1 heavy duty. Among peer night latch trim, Sargent's 704ET and 704-ETL are both Grade 1 heavy duty, and the Sargent 744 is Grade 1. On the lever side, Falcon's 510L is heavy duty for 24/25 Series devices, and the 510L-FSA/FSE is the heavy duty electrified version for 25 Series. By contrast, Falcon's 179L lever control trim for 1790 Series and the 212L escutcheon trim for 20 Series are medium duty, so they will not satisfy a heavy duty line item.
10) What does night latch function actually do on an exit device trim?
Night latch means the outside trim has a keyed cylinder and no lever or thumbpiece that operates on its own. Key retracts the latch to let someone in; without the key the outside stays locked. Push the bar from the inside and you are out regardless, so egress is never affected. It is the function facilities use for after hours control on a back door or a service entrance where you want free exit and key-only entry.
11) How far does the 555NL exit trim stick out from the door face?
Projection on the 555NL night latch trim is 2-5/8 x 1-7/8 inches. That matters where the door swings past a wall return, a sidelite frame or an adjacent leaf on a pair, and it matters in a corridor where a projecting trim can catch traffic. Check the number against your clearance before you commit, especially on a narrow stile aluminum or hollow metal opening.
12) Is the Von Duprin 555NL trim rated for heavy traffic commercial use?
Grade 1 heavy duty, and specified as commercial rather than residential. That is the top ANSI/BHMA duty tier for this class of hardware, which is what an institutional spec on a school, hospital or municipal building normally calls for. A night latch trim on an after hours entrance takes key cycles every day, and Grade 1 is the level written for that.
13) Can I use the 555NL on a surface vertical rod device, or only on a rim device?
Both. The 55 Series night latch trim covers surface mounted vertical rod and rim applications, so a pair of doors running SVR devices and a single leaf running a rim device can take the same trim. What it does not change is the device family requirement: it still has to be a 55 Series device underneath.
14) What is the difference between night latch trim and lever or storeroom trim on an exit device?
Night latch trim like the 555NL has no operating lever outside, just a cylinder that retracts the latch. Storeroom trim has a lever that stays locked until keyed, so you get a graspable handle; the Design Hardware KIL storeroom trim and the Tell EDELT80 are storeroom function options. Entry function trim, such as the Design Hardware LE08 or the Tell EDELT53, unlocks with a key and then the lever operates freely. Choose night latch when you want the plainest, lowest maintenance outside operation and no lever to be vandalized or forced.
15) Does the 555NL trim come with a cylinder, or do I order that separately?
Night latch trim is cylinder operated, and the cylinder is a separate line item keyed to your system, not part of the trim. The finishes offered run from 626 satin chrome through 622 matte black, so order the cylinder in a matching finish. A locksmith keying a building to one system will want the cylinder specified with the keyway and keying at the same time as the trim.
16) My 55 Series device already has trim on it. Can I swap in the night latch trim later without changing the device?
Yes, and that is the point of the 55 Series universal center case. The center case takes different trim and feature configurations, so a building that starts with one function can move to key-only night latch entry later without pulling the device off the door. The constraint stays the same: the 555NL for hollow metal, the 556NL for wood.
17) The 555NL is for a narrow stile device - what night latch trim goes on a wide stile aluminum or hollow metal opening?
The Von Duprin 555NL is built for the narrow stile profile of the 55 Series exit device. For a wide stile opening, Dormakaba's YR03R is a wide stile escutcheon lever trim in night latch function. BEST's 1701 is an exit only pull trim for wide stile 2000 Series devices, and the 4901 is a wide stile exit only lever trim for the same devices - both exit only, so they are a pull rather than a keyed night latch. BEST's 2001 pull trim with cover plate and the 2901 lever trim are the narrow stile versions of that same exit only function.
18) I want a lever on the outside instead of a night latch pull - what are my options?
The Von Duprin 555NL is night latch trim with a 2 5/8 inch by 1 7/8 inch projection. If the opening calls for a lever the buyer grips, Dormakaba's YR03R is a wide stile escutcheon lever trim in night latch function, less cylinder, which keeps the same key retracts function with an R lever. Sargent's 704-ETL is a nightlatch lever trim with key retract function for PE Series devices, Grade 1 heavy duty. Both are lever trim rather than pull trim, so confirm the device family before ordering.
19) What night latch pull trim is available if I am not working with a Von Duprin device?
The Von Duprin 555NL is 55 Series trim in a night latch pull form. Comparable pull-style trim on other device families includes the Design Hardware 2P-03NL, a Grade 1 pull trim with a cylinder hole in night latch form for the 1000R and 2000R exit devices, and the Dexter ED1500T pull, a Grade 1 nightlatch function trim with a raised lip pull plate. The Tell EDPT is a pull trim with a cylinder hole, less cylinder, for doors 1-3/8 inch to 1-3/4 inch thick. All three take a cylinder, same as the 555NL arrangement, but each is matched to its own device.
20) I have a hollow metal door and a wood door on the same pair - do I need two different part numbers?
Yes. The Von Duprin 55 Series night latch trim is ordered as the 555NL for hollow metal doors and the 556NL for wood doors, and both are Grade 1 heavy duty and non-handed. Peers handle this differently: the Pamex E9000 storeroom trim states a 1-3/8 inch to 2 inch door thickness range, and Tell's EDELT53 entry and EDELT80 storeroom trim each state 1-3/8 inch to 1-3/4 inch, covering their range with one number rather than a door-material split. With the 55 Series trim, call out the door construction on each leaf.
21) Is a keyed entry trim an acceptable substitute for night latch trim?
They are not the same function. The Von Duprin 555NL is night latch trim: the key retracts the latch and the outside is otherwise secure. Keyed entry trim such as the Tell EDELT53 escutcheon lever or the EDTHP53 thumbpiece trim, both for doors 1-3/8 inch to 1-3/4 inch thick, is entry function, as are the Design Hardware KIL entry trim and LE08, both Grade 1, and the Delaney 500L in its CT, MD and SD lever styles. Entry function trim allows the outside handle to be left unlocked, which is a different security posture than a night latch. Choose by how the facility wants the outside to behave when nobody has turned a key.
22) What finishes does the Von Duprin 555NL night latch trim come in?
Nine finishes: 626 satin chrome, 625 bright chrome, 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 643E aged bronze, 622 matte black and 693/SPBLK black painted. Every one of them is offered on both the hollow metal and the wood door version, so matching a bronze or black lobby package across mixed door construction is not a problem. 626 satin chrome is the usual default on commercial openings.
How fast can I get the Von Duprin 555NL 26D RHR 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 555NL 26D RHR come with a warranty?
Absolutely. The Von Duprin 555NL 26D RHR 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 555NL 26D RHR?
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
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