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Vlier Products, a unit of Hutchinson Aerospace & Industry, has been an industry leader for more than 75 years manufacturing spring-loaded devices, quick-release plungers, leveling devices and mechanical components. Customers insist on Vlier for their vast product selection, versatile applications, superior value and performance.

All products in the extensive line are precision-made and a trusted source across aerospace, medical, telecommunications, transportation industries and more. Over the years, constant improvements have been made to better serve the requirements of our customers. Today, we are considered the expert for designs that require positioning, indexing, detenting, holding, ejecting, leveling and support. More than that—our applications engineering staff is trained and ready to provide comprehensive support for all design, installation and application requirements.

Based out of Massachusetts, Vlier calls upon a global distribution network, making the products readily available worldwide. Working smarter and harder for you, and offering more than 3,300 standard and custom solutions in a variety of sizes and materials, Vlier has the right part for your job.


Vlier Products Include:

  • Spring Loaded Devices
  • Quick Release Devices
  • Leveling Devices
  • Mechanical Components

View the Vlier Catalog

Featured Vlier Products

  • Hex-Head Ball Plungers
  • Knurled Press-Fit Plunger

Vlier Hex Head Ball PlungerHex-Head Ball Plungers

Vlier's hex-head ball plungers are compact units suitable for applications with side loading requirements and are available in either steel or stainless steel design.


  • Side-load tolerant
  • Controlled end forces
  • Screwdriver installation
  • Stainless steel resists corrosion
  • Stainless steel withstands high temperatures
  • Special hex-head design for fixed installation
  • Two installation options with socket or screwdriver
  • Three standard spring forces
  • Controlled force in compact design

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Vlier Knurled Press-Fit Ball PlungerKnurled Press-Fit Plungers

Vlier's knurled press-fit plungers are easily installed and designed without shoulder for insertion from either end. Ideal where a threaded plunger is impractical or when threaded adjustments are not required.


  • Easy installation
  • No thread adjustment
  • Stainless steel resists corrosion
  • Stainless steel withstands high temperatures
  • Steel & stainless steel versions with Delrin Nose

Learn more at

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