National Utilities Company is a leading component and exhaust flange manufacturer for a variety of industries.

Our experts offer industry-leading joining component designs in a variety of standard measurements and features. Request a full catalog to see our in-stock clamps, flanges, and assemblies. Or, request a quote to have NUCO engineers design a specific product or a solution using standard components to suit your project, from development to testing and qualification.


NUCO Products

National Utilities offers products with superior quality and performance. Most products are available in a variety of sizes and configurations to meet your specific needs. Contact our engineering team for expert component and hardware recommendations.


NUCO clamp solutions are available in many latch styles, diameters, band sizes, and configurations specific to your application needs. Visit our clamps page to learn more about our standard products and request a quote for your project.


NUCO Flanges are available in either formed sheed metal or machined configurations for rubber, elastomer, or teflon seals. Our engineers are happy to develop a customized quote for flanges and assemblies that meet your project specifications. NUCO is an exhaust flange manufacturer you can trust to create custom joining solutions for any application.

Other Parts & Assemblies

National Utilities Company engineers are the industry’s go-to team for developing custom joning assembly solutions. Using standard components and new designs, our team can devise an exacting duct joint, seal, or strap assembly and recommend all necessary hardware to suit your project needs.

Custom Orders
If our current library of drawings does not hold a specification which suits your design function, National Utilities can create a new design to accomplish your goals. Request a quote today for your application-specific coupling or joint design or assistance ordering the best products and hardware to suit your needs. NUCO’s experienced engineers can provide solutions to fit your exact design requirements.

An exhaust flange manufacturer focused on quality

National Utilities Quality Assurance inspects products at each manufacturing operation to ensure the quality of raw materials, assemblies, and components. Final inspections ensure that parts meet or exceed the National Utilities or customer print prior to shipment. Quality Assurance completes all pertinent AS9102 First Article testing and can complete 8130 tags for parts carrying FAA/PMA approval. Contact our engineering team today to learn more about NUCO’s QA testing processes.

Vendor QA Documentation

It is our goal to continually increase our ability to communicate efficiently with our supply chain. Please review the QA documents below to ensure that you have our most recent quality assurance documents.

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Customized Joining Solutions

Contact National Utilities Company’s experienced sales team to request a quote today for your application-specific coupling or joint design. Simply provide your project specifications, and our team will reach out to discuss every detail and provide a joining solution that is engineered to suit your needs.