Premium Tube Fittings | Brass, Steel, & 316 Stainless Steel

Hydraulic Supply Company offers a wide selection of tube fittings designed for secure, leak-free connections. 

With more than 580 items available, our inventory includes brass compression fittings for copper, aluminum, and plastic tubing, steel flareless fittings for hydraulic systems, and 316 stainless steel fittings for environments requiring corrosion resistance. Each fitting is built for durability and reliable performance across fluid and air systems.

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Items 11-20 of 564

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  1. Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube To Male NPT, 90 deg Elbow
    Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube To Male NPT, 90 deg Elbow

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  2. Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube To Male NPT, Straight
    Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube To Male NPT, Straight

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  3. Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union
    Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  4. Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union Elbow
    Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union Elbow

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  5. Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union Tee
    Brass Compression Fittings For Plastic, Copper, & Aluminum Tubing, Tube Union Tee

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  6. Brass Compression Fittings, Tube Run & Branch To Male NPT Run, Tee
    Brass Compression Fittings, Tube Run & Branch To Male NPT Run, Tee

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  7. Brass Compression Inserts For Copper & Aluminum Tubing
    Brass Compression Inserts For Copper & Aluminum Tubing

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  8. Brass Compression Nuts For Copper & Aluminum Tubing
    Brass Compression Nuts For Copper & Aluminum Tubing

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  9. Brass Compression Nuts For Plastic, Copper, & Aluminum Tubing
    Brass Compression Nuts For Plastic, Copper, & Aluminum Tubing

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

  10. Brass Compression Sleeves For Copper & Aluminum Tubing
    Brass Compression Sleeves For Copper & Aluminum Tubing

    Product is currently not available online.
    Please call 800-507-9651 for assistance.

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Applications That Rely on Tube Fittings

Tube fittings are essential components in industries that depend on safe and consistent fluid transfer. Our products support sectors such as agriculture, construction, and mobile machinery and equipment.

  • Brass tube fittings provide dependable compression connections in general fluid and air systems.

  • Steel tube fittings in flareless designs are widely used for hydraulic equipment that faces vibration and pressure demands.

  • 316 stainless steel tube fittings are chosen for corrosive environments where long service life is critical.

For a complete overview of the markets we serve, visit our Industries page.

Support for Tube Fittings & Technical Guidance

Choosing the right tube fitting depends on tubing material, system pressure, and application environment. 

Compression fittings are common for copper, aluminum, and plastic tubing, while flareless steel fittings are designed for hydraulic applications. Stainless steel is recommended where corrosion resistance is a priority.

If you need assistance with sizing, material selection, or compatibility, our team is ready to help. You can also browse fittings by material:

For technical guidance or product support, please contact us.

Tube Fitting FAQs

What Materials Are Available for Tube Fittings?

We supply tube fittings in brass, steel, and 316 stainless steel to match a variety of system requirements.

What Types of Tube Fittings Do You Offer?

Our inventory includes compression and flareless fittings in configurations such as unions, elbows, tees, nuts, ferrules, and plugs.

What Tubing Materials Are Supported?

Brass compression fittings work with copper, aluminum, and plastic tubing. Flareless steel fittings are designed for hydraulic tubing systems.

How Do I Select the Right Tube Fitting?

Material choice depends on tubing type, operating pressure, and environment. For help with fitting selection, visit our contact page.