Von Duprin 050054 Mullion Stab...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$147.00
$121.77
Von Duprin 050054 Mullion Stabilizer with Fitting, Cover, and Ball Plunger

Von Duprin 050054 Mullion Stabilizer with Fitting, Cover, and Ball Plunger

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Model: 050054-SP313
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$147.00
$121.77
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Von Duprin 050054 Mullion Stabilizer with Fitting, Cover, and Ball Plunger

Professional-Grade Mullion Stabilizer Accessory for Exit Device Applications

The Von Duprin 050054 Mullion Stabilizer is a purpose-built replacement and accessory component designed for use with Von Duprin mullion assemblies in commercial exit device applications. This complete kit includes all necessary hardware for a proper installation, featuring one fitting, one top fitting cover, four 5/16-18 x 1-1/4" flat-head machine screws (FPHMS), two 1/4-20 x 3/8" pan-head machine screws (PPHMS), and one ball plunger. Engineered as part of the Series 54 mullion product line, this stabilizer kit ensures secure, reliable mullion performance in demanding door hardware environments.

Professional Features & Benefits

  • Complete Hardware Kit: Includes all required components — one fitting, one top fitting cover, four 5/16-18 x 1-1/4" FPHMS, two 1/4-20 x 3/8" PPHMS, and one ball plunger — for a straightforward, all-in-one installation experience.
  • Precise Screw Sizing: Kit supplies two distinct screw specifications — 5/16-18 x 1-1/4" and 1/4-20 x 3/8" — ensuring correct fastener engagement for both primary and secondary mounting points.
  • Ball Plunger Included: The integrated ball plunger component provides positive positioning and retention, contributing to stable mullion alignment and consistent door operation.
  • Top Fitting Cover: The included top fitting cover provides a finished, professional appearance while protecting internal components from dust and debris in high-traffic commercial environments.
  • Series 54 Compatibility: Designed specifically for the Von Duprin Series 54 mullion product line, ensuring proper fit and function within compatible exit device assemblies.
  • Exit Device Parts Category: Classified under Exit Device Parts and Mullion Parts & Accessories, this component is engineered to maintain the performance integrity of Von Duprin mullion systems.
  • Trusted Von Duprin Engineering: Manufactured to Von Duprin’s commercial-grade standards, this stabilizer kit supports long-term reliability in door hardware installations across a wide range of facility types.

Technical Specifications

  • Subcategory: Parts and Accessories
  • Product Group: Mullions
  • Product Subgroup: Parts and Accessories
  • Product Category: Exit Devices Parts
  • Product Function: Mullion Stabilizer
  • Included Components: (1) Fitting; (1) Top Fitting Cover; (4) 5/16-18 x 1-1/4" FPHMS; (2) 1/4-20 x 3/8" PPHMS; (1) Ball Plunger
  • Series: 54
  • 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 mullion stabilizer components are manufactured to the same exacting commercial-grade standards as the broader Von Duprin exit device product line, ensuring reliable fit and function within Series 54 mullion assemblies. Each 050054 kit is supplied with a complete set of precisely specified fasteners — including 5/16-18 x 1-1/4" and 1/4-20 x 3/8" screws — along with a fitting, top fitting cover, and ball plunger for a professional, lasting installation. When dependable door hardware performance is essential, Von Duprin delivers the quality and precision that commercial facilities require.

Manufacturer Resources

Product Specs

Subcategory:
Parts and Accessories
Product Group:
Mullions
Product Subgroup:
Parts and Accessories
Product Category:
Exit Devices Parts
Product Function:
Mullion Stabilizer
Included Components:
(1) Fitting; (1) Top Fitting Cover; (4) 5/16-18 x 1-1/4" FPHMS; (2) 1/4-20 x 3/8" PPHMS; (1) Ball Plunger
Series:
54
Department:
Door Hardware

Von Duprin 050054-SP313 – Frequently Asked Questions

1) What comes in the Von Duprin 050054 mullion stabilizer kit?
The 050054 kit ships with one fitting, one top fitting cover, four 5/16-18 x 1-1/4 inch flat-head machine screws, two 1/4-20 x 3/8 inch pan-head machine screws, and one ball plunger. Everything needed to mount the stabilizer is in the bag, so you are not sourcing fasteners separately on the jobsite.
2) Will the 050054 stabilizer work on any Von Duprin mullion, or only certain ones?
It is built for the Von Duprin Series 54 mullion line. Confirm the mullion on the opening is a 54 series before ordering, because the fitting and ball plunger are sized to that assembly rather than to mullions generally.
3) What does a mullion stabilizer actually do on a pair of doors?
On a removable mullion pair, the stabilizer is the top fitting that locates and holds the mullion in the frame. The ball plunger in the 050054 kit gives positive positioning and retention so the mullion seats the same way every time it is reinstalled, which is what keeps rim device latches engaging the mullion strike consistently.
4) Can I buy the 050054 as a replacement part if the ball plunger on my mullion is worn out?
Yes. The 050054 is sold as a replacement and accessory component for Von Duprin mullion assemblies, and the ball plunger is included in the kit along with the fitting, top cover, and both screw sizes. You do not have to replace the whole mullion to restore positive top-end retention.
5) What screw threads does the Von Duprin 050054 use, in case I need extras?
Two thread sizes are supplied: 5/16-18 x 1-1/4 inch flat-head machine screws at the primary mounting points (four of them) and 1/4-20 x 3/8 inch pan-head machine screws (two) for the secondary points. Match those exact threads if you are replacing a lost fastener.
6) What finish does the 050054 mullion stabilizer come in?
Dark bronze, 695/SP313. If the mullion and exit devices on the opening are already 695, the stabilizer and its top cover will match; for a satin chrome or aluminum opening the exposed top cover will read darker than the surrounding hardware.
7) Is the top fitting cover included, or is that a separate order?
The top fitting cover is part of the 050054 kit, one per kit. It closes off the fitting for a finished look and keeps dust and debris out of the internals, which matters in high-traffic entrances where the mullion is pulled and reset often.
8) I manage several buildings with Von Duprin mullions. Is the 050054 something worth stocking?
It is a common wear item on removable mullion openings, since the top fitting and ball plunger take the abuse every time the mullion is removed and reset. Buying it as a kit means one part number covers the fitting, cover, plunger, and all six screws, so a maintenance tech can make the repair in one trip on any Series 54 mullion in the portfolio.
How fast can I get the Von Duprin 050054-SP313 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 050054-SP313 come with a warranty?
Absolutely. The Von Duprin 050054-SP313 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 050054-SP313?
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 050054-SP313 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.
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