MIL-C-5541E Type I Class 3 certified

MIL-C-5541E Type I Class 3

EIA-310d compliant certified

EIA-310d Compliant

Caltrans Certified DBE certified

Caltrans Certified DBE

4U Rackmount Chassis

4U rackmount chassis systems from Ron Nunes Enterprises are precision-fabricated aluminum enclosures designed for 19-inch rack compatibility. Available in multiple depths, MIL-spec finishes, and modular configurations, they serve defense, telecom, data center, and industrial applications with over 55 years of manufacturing expertise.

Rack Mount Chassis
17" Standard Rack Mount Chassis System
Rack Chassis System

Our Range of Products

Rack Mount Chassis

Rack Mount Chassis

  • 1U–9U heights, 12–26" depth options
  • MIL-C-5541E Type I Class 3 finish option
  • Class A/XX certified welders & assemblers
17" Standard Rack Mount Chassis System

17" Standard Rack Mount Chassis System

  • EIA-310d compliant, fits all 19" racks
  • 175 lb slide capacity, shock-resistant
  • 1U–9U panels, 8"–26" custom depths
Rack Chassis System

Rack Chassis System

  • Standard 19" rack-compatible chassis
  • Configurable for data center deployments
  • Direct sales team for custom configuration

Frequently Asked Questions

What rack sizes are compatible with your 4U rackmount chassis?

Our 4U rackmount chassis are engineered to fit standard 19-inch rack enclosures per EIA-310d specifications. The panel width is 17 inches, configured for universal 19-inch rack systems. Available depths include 8, 12, 14, 20, and 26 inches, with custom depths available on request to accommodate specific installation requirements.

What materials are available for the 4U rackmount chassis?

Are MIL-spec finish options available for defense applications?

Can I order a custom-configured or assembled rack chassis?

What is included in a standard rack chassis kit?

What industries use these 4U rackmount chassis?

How quickly can I receive a 4U rack chassis after ordering?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Military & Defense

Military & Defense

MIL-C-5541E compliant chassis for defense electronics packaging, field deployments, and government installations.

Telecommunications & Data Centers

Telecommunications & Data Centers

Standard 19-inch compatible chassis for telecom and data center rack-mounted networking equipment.

Government & Research Laboratories

Government & Research Laboratories

Chassis used in government labs and physics research facilities requiring precise rack-mount enclosures.

Industrial & OEM Electronics

Industrial & OEM Electronics

Custom chassis solutions for OEM systems integrators and industrial equipment housing applications.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Defense, Telecom & Industrial Engineers Choose Ron Nunes Enterprises

55+ Years of Fabrication Expertise

Since 1969, Ron Nunes Enterprises has delivered precision rack chassis to defense, telecom, and industrial sectors with proven manufacturing excellence.

MIL-Spec & EIA-310d Compliance

Chassis meet MIL-C-5541E and EIA-310d standards with certified materials and Class A/XX welders ensuring quality for mission-critical applications.

Fast Stock & Custom Lead Times

Stock items ship within 3 business days; custom rack chassis are delivered within 15 working days with full engineering support available.

Request a Quote for Your Rack Chassis Needs

Submit your specifications and our sales team will respond with pricing, lead times, and custom configuration options tailored to your project.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 1-877-800-7225. You can also send us a quick email at sales@ronnunes.com.