Von Duprin 5575F-4ft Fire Rate...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,232.00
$3,910.27
Von Duprin 5575F-4ft Fire Rated 4ft Narrow Stile Crossbar Mortise Lock Exit Device Less Dogging

Von Duprin 5575F-4ft Fire Rated 4ft Narrow Stile Crossbar Mortise Lock Exit Device Less Dogging

(No reviews yet) Write a Review

Model: 5575EO-F US26D-4
$4,232.00
$3,910.27
Selected Finish is
Selected Trim Function is
Selected Lever Style (for Lever Trim Function Only) is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4,232.00
$3,910.27
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Von Duprin 5575F-4ft Fire Rated 4ft Narrow Stile Crossbar Mortise Lock Exit Device Less Dogging

Classic Crossbar Design with Commercial-Grade Mortise Lock Performance

The Von Duprin 5575F-4ft is a fire-rated, narrow stile crossbar mortise lock exit device from the trusted 55 Series, engineered for 4' x 10' (1219 mm x 3048 mm) single or 8' x 8' (2438 mm x 2438 mm) double metal doors. UL listed for up to 3-hour labeled fire installations, this device fits door stiles as narrow as 4-3/4" (121 mm) and is specified for 2-1/4" doors. The 7500 mortise lock features a 3/4" (19 mm) anti-friction latch bolt that is field reversible without removing the lock from the door, along with a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel. Wood door installations require the 589 cover plate. Certified to ANSI/BHMA A156.3, 2008 Grade 1 standards, this device delivers reliable, code-compliant egress performance for demanding commercial environments.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 4-3/4" (121 mm), specified for 2-1/4" doors, making it ideal for narrow stile metal door applications.
  • Fire-Rated Construction: UL listed for up to 3-hour labeled fire installations per ANSI/UL 10C and CAN/ULC-S104, ensuring compliance with the most demanding fire egress requirements.
  • Door Size Coverage: Designed for 4' x 10' (1219 mm x 3048 mm) single or 8' x 8' (2438 mm x 2438 mm) double metal doors, providing versatile coverage for a wide range of commercial openings.
  • Field-Reversible Mortise Lock: The 7500 mortise lock includes a 3/4" (19 mm) anti-friction latch bolt that is field reversible without removing the lock from the door, simplifying installation and handing adjustments.
  • Deadlocking Auxiliary Bolt: Non-handed auxiliary bolt provides positive deadlocking for enhanced security, paired with a faceplate featuring an adjustable bevel for precise door fit.
  • ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 certification along with ANSI/UL 305 and CAN/ULC-S132, confirming top-tier performance and code compliance.
  • Flexible Configuration Options: Available with optional E8875 electrified option for access control or fire alarm integration, RX switch for door monitoring, and KN knurling for tactile hazard warnings on crossbars.
  • Classic Narrow Stile Design: The 55 Series crossbar design is commonly used in retro-inspired architecture and historical buildings, offering both aesthetic appeal and functional reliability.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 55 Series
  • Grade: Grade 1
  • Fasteners: Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
  • Product Subgroup: Exit Devices - Mortise
  • Product Type: Exit Devices - Mortise
  • Subcategory: Mortise Exit Devices
  • Latch Throw: 1/2"
  • Commercial/Residential: Commercial
  • Stile Type: Narrow Stile
  • Door Hand Direction: Field Reversible
  • Door Thickness Range: 1-3/4"
  • Product Size: 48"
  • Dogging Configuration: Hex Key Dogging
  • Product Dimension: 7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
  • Fire Rating: Yes
  • Product Projection: 3-3/4"
  • Product Style: Cross Bars
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Government and Municipal Buildings
  • Historical and Retro-Inspired Architecture

Why Choose Von Duprin Quality?

Von Duprin 55 Series mortise exit devices are engineered to meet ANSI/BHMA A156.3, 2008 Grade 1 certification and are UL listed for up to 3-hour fire-rated installations per ANSI/UL 10C and CAN/ULC-S104, ensuring dependable performance in the most demanding commercial and fire egress applications. The field-reversible 7500 mortise lock with 3/4" anti-friction latch bolt and non-handed auxiliary deadlocking bolt reflects the precision engineering Von Duprin is known for. Engineered for commercial environments where code compliance, fire safety, and long-term reliability are non-negotiable.

Manufacturer Resources

Von Duprin 55 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
55 Series
Grade:
Grade 1
Fasteners:
Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
Product Subgroup:
Exit Devices - Mortise
Product Type:
Exit Devices - Mortise
Subcategory:
Mortise Exit Devices
Latch Throw:
1/2"
Commercial/Residential:
Commercial
Stile Type:
Narrow Stile
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Size:
48"
Dogging Configuration:
Hex Key Dogging
Product Dimension:
7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
Fire Rating:
Yes
Product Projection:
3-3/4"
Product Style:
Cross Bars
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 5575EO-F US26D-4 – Frequently Asked Questions

1) Will the Von Duprin 5575F narrow stile exit device fit a 4-3/4 inch door stile?
Yes. The 55 Series 5575F is a narrow stile crossbar device and fits stiles as narrow as 4-3/4 inches (121 mm), which is why it goes on aluminum and narrow stile metal openings where a wide stile device has no room to land. If your stile is wider than that, the device still mounts, but you have other options: the Adams Rite 8400 Series is another narrow stile mortise device, and the Corbin Russwin ED5600AL and Falcon 25-M-EO are wide stile mortise devices for standard hollow metal and wood doors.
2) Can I use the Von Duprin 5575F on a labeled fire door?
Yes. The 5575F is fire rated and UL listed for labeled fire installations up to 3 hours per ANSI/UL 10C and CAN/ULC-S104, and it is certified to ANSI/BHMA A156.3, 2008 Grade 1 along with ANSI/UL 305 and CAN/ULC-S132. That combination is what an institutional spec normally calls for on a rated egress opening. If the opening is not rated, the Adams Rite 8300 and 8400 Series are life safety mortise devices carried without a fire rating.
3) What door sizes does the Von Duprin 55 Series 5575F cover, and is 48 inches the device length?
The device is a 48 inch crossbar, sized for 4 ft x 10 ft (1219 mm x 3048 mm) single metal doors or 8 ft x 8 ft (2438 mm x 2438 mm) pairs. Measure the door leaf width first: a 4 ft leaf takes this 48 inch device, and on a pair each leaf gets its own device. The crossbar projects 3-3/4 inches off the face of the door, which is the clearance you need to check against any adjacent wall, door swing, or corridor width.
4) Do I have to order the Von Duprin 5575F handed, or can it be reversed in the field?
Handing is a required selection at order, LHR (left hand reverse) or RHR (right hand reverse), but the 7500 mortise lock is field reversible and its 3/4 inch anti-friction latch bolt can be reversed without pulling the lock out of the door. The auxiliary deadlocking bolt is non-handed. So if a job walk turns up the wrong hand on site, a locksmith can correct it at the opening rather than sending the device back.
5) What outside trim functions can I get with the Von Duprin 55 Series mortise exit device?
Five functions to pick from: DT dummy trim, EO exit only with no outside operation, L lever, L-BE lever with blank escutcheon, and NL night latch (key retracts the latch from outside). Exit only suits a stair discharge or a rear service door nobody re-enters through. Night latch is the one for a back-of-house door where staff come back in with a key. If you choose an L or L-BE function you also have to specify the lever style: 06 (the default on L trim), 03, 07, or 17.
6) What is the closest fire-rated mortise exit device to the Von Duprin 5575F if the door is a wide stile wood or hollow metal leaf?
The 5575F is a narrow stile device carrying a Grade 1 rating and a fire rating, so on a wide stile wood or hollow metal door the Adams Rite 3300 Series is the closer match: it is a fire-rated Grade 1 mortise exit device built for wood and hollow metal doors in a wide stile configuration. The Corbin Russwin ED5600AL is the other fire-rated Grade 1 wide stile mortise device, listed for 1-3/4 inch doors and set up as exit only or for use with classroom or passage lever trim. Both keep you fire rated and Grade 1 while moving off the narrow stile geometry the 5575F is designed around.
7) The opening does not need a fire label - what narrow stile mortise exit device works instead of the Von Duprin 5575F?
The Von Duprin 5575F is fire rated, which is what you are paying for on a labeled opening. Where the door carries no label, the Adams Rite 8400 Series is a Grade 1 narrow stile mortise exit device listed as not fire rated, built for aluminum doors. The Sargent 8304 is another narrow stile Grade 1 mortise device, set up in night latch function. Both hold the narrow stile geometry; neither carries the fire rating the 5575F does, so they belong only on openings where no label is required.
8) Is the Sargent 1256NB-8710G a substitute for the Von Duprin 5575F mortise exit device?
No. Both are Grade 1 narrow stile exit devices, but they latch in completely different places. The Von Duprin 5575F is a mortise exit device with a lock case mortised into the lock stile edge. The Sargent 1256NB-8710G is a surface mount vertical rod device that latches at the head and sill of the frame, 84 inches tall, fire rated, with electric latch retraction. Swapping one for the other means a different door prep entirely, not a trim change.
9) Can the Von Duprin 5575F crossbar device go on a wood door?
It can, but wood door installations require the 589 cover plate, which is a separate item you need on the order. The device ships with a screw pack sized for the door thicknesses it is built around, so on a wood leaf plan for the cover plate plus a mortise pocket prepped to the 7500 lock case. Buyers doing hollow metal only can skip the 589 entirely.
10) Can I tie a Von Duprin 5575F into an access control or fire alarm system?
Yes. The 5575F takes the optional E8875 electrified option for access control or fire alarm integration, and an RX request-to-exit switch is available if you need the door monitored for legitimate egress at the head end. RX is ordered as part of the device configuration, so specify it up front rather than trying to add a switch later.
11) Why choose a mortise exit device like the Von Duprin 5575F over a rim or vertical rod device?
A mortise device latches into a single point at the lock stile through a lock case set into the door edge, so it needs a mortise pocket prepped in the leaf but leaves the face of the door clean, with no rods running to the head and threshold. Use it on a single door in a frame, or on the active leaf of a pair with a mullion. Where you need to secure a pair with no center mullion, a mortise device is the wrong tool and a surface vertical rod device is what latches top and bottom, for example the Sargent 1256NB-8710G, an 84 inch narrow stile fire rated surface vertical rod device with electric latch retraction.
12) How much room does the 7500 mortise lock case need in the door edge?
Both the hinge stile case and the lock stile case measure 7-1/4 x 1-1/4 x 2-1/4 inches, so the leaf has to have enough meat in the edge to accept a pocket of that size. On a narrow stile aluminum door that is the real constraint, not the crossbar, and it is worth confirming against the existing prep before you cut. Existing mortise prep from another 55 Series device usually reuses.
13) What is the closest alternative to the Von Duprin 5575F if I need a night latch narrow stile mortise device?
Sargent's 8304 is a night latch function narrow stile mortise exit device, Grade 1, and it is the nearest peer if you want that function from another manufacturer. The 55 Series covers the same ground with its NL night latch trim function, so if you are already standardized on Von Duprin the function is available without a brand change. Note the 8304 is a push pad style device, not a crossbar, so the appearance on the door will not match adjacent 55 Series openings.
14) I only need exit only function - what is a simpler mortise exit device than the Von Duprin 5575F?
The Von Duprin 5575F covers a full range of trim functions including dummy trim, exit only, lever, lever with blank escutcheon, and night latch, so an exit only order still carries the 55 Series crossbar hardware. If the opening only ever needs push to exit, the Falcon 25-M-EO is a Grade 1 wide stile mortise exit device supplied in exit only function for 1-3/4 inch doors, and the Detex 30 Series Advantex is a Grade 1 wide stile mortise device supplied as device only, exit only, which is not wood door compatible. The BEST Precision 2301 Series is an exit only mortise device with heavy wrought construction. All three are wide stile builds, so confirm the stile width before moving off the 5575F.
15) What mortise exit device gives me night latch function if the Von Duprin 5575F does not suit the opening?
Night latch is one of the trim functions the Von Duprin 5575F is built in, alongside dummy trim, exit only, lever, and lever with blank escutcheon. If the 5575F does not suit the door, the Sargent 8304 is a Grade 1 narrow stile mortise exit device in night latch function, and the Sargent 8904 is the wide stile Grade 1 night latch mortise device with 24VAC/DC operation. Pick by stile: the 8304 stays in narrow stile territory like the 5575F, the 8904 moves to a wide stile leaf and adds the low voltage electrical build.
16) Can I order the Sargent 810 instead of a Von Duprin 5575F in dummy trim?
No - those are two different classes of part. The Sargent 810 is a Grade 1 dummy pull exit device trim, meaning trim only with no exit device behind it. The Von Duprin 5575F in DT dummy trim is a complete narrow stile mortise exit device with the crossbar and mortise lock, fire rated and Grade 1. If you need a working egress device that happens to carry dummy trim on the outside, the 5575F is the item; the 810 is the pull you hang on a leaf that has no device.
17) Which mortise exit devices besides the Von Duprin 5575F accept lever trim for a classroom opening?
The Von Duprin 5575F is ordered with L lever or L-BE lever with blank escutcheon trim, with the lever style selected from 06, 03, 07, or 17. The Corbin Russwin ED5600AL is the comparable that states the same intent from the other direction: it is a Grade 1, 3 hour fire rated mortise exit device for 1-3/4 inch doors that is exit only or accepts passage or classroom lever trim, ordered separately. The difference to settle first is stile - the ED5600AL is a wide stile device and the 5575F is narrow stile.
18) What is the difference between the Adams Rite 3300 and 8300 Series if I am cross-shopping against a Von Duprin 5575F?
Both Adams Rite series are Grade 1 wide stile mortise exit devices for wood and hollow metal doors, and both differ from the Von Duprin 5575F, which is a narrow stile Grade 1 device. Between the two Adams Rite series, the 3300 Series is fire rated and the 8300 Series is a life-safety device that is not fire rated. On a labeled opening the 3300 is the one that lines up with the 5575F on fire rating; the 8300 belongs on unlabeled life-safety openings.
19) I need a mortise exit device on a wood door - which options rule themselves out next to the Von Duprin 5575F?
The Von Duprin 5575F ships with a screw pack for 1-1/4 inch and 2-1/4 inch thick metal and wood doors. Among the alternatives, the Detex 30 Series Advantex is the one that rules itself out: it is a Grade 1 wide stile mortise device listed as not wood door compatible. The Adams Rite 3300 Series and 8300 Series are both stated for wood and hollow metal doors, and the Adams Rite 8400 Series is built for aluminum doors, so check the leaf material before you settle on a substitute.
20) If I need request to exit monitoring on a mortise exit device, how does the Von Duprin 5575F compare to the electrified alternatives?
The Von Duprin 5575F is ordered with an RX request to exit switch as a factory option on the device itself, alongside the fire rating and Grade 1 certification. Among the alternatives, the Sargent 8904 is a Grade 1 wide stile night latch mortise device with 24VAC/DC operation, and the Sargent 1256NB-8710G is a Grade 1 narrow stile fire rated surface vertical rod device with electric latch retraction. Those are different electrical jobs - latch retraction pulls the latch, the RX switch on the 5575F reports that the device was pushed.
21) What finishes does the Von Duprin 55 Series crossbar exit device come in, and can I match the other doors in my building?
Eight finishes across the range: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 643E aged bronze, and 693 black. For a property manager standardizing a building, 626 satin chrome and 613 oil rubbed bronze are the two that most commonly match existing commercial hardware, and the crossbar look itself is the one that suits older and retro-inspired architecture where a push pad device would look wrong.
22) What is the KN knurled crossbar option on a Von Duprin 55 Series device for?
KN knurling puts a textured surface on the crossbar as a tactile hazard warning, the standard cue on a door leading to an area that is dangerous to the visually impaired, such as a mechanical or loading area. Three crossbar choices are offered: standard, RCB reinforced crossbar for high abuse traffic, and KN knurled. Pick the crossbar at order time, since it is part of the device build.
How fast can I get the Von Duprin 5575EO-F US26D-4 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 5575EO-F US26D-4 come with a warranty?
Absolutely. The Von Duprin 5575EO-F US26D-4 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 5575EO-F US26D-4?
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 5575EO-F US26D-4 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.
!