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37° JIC SAE Flare Male Tube Union - Part 2403

Part Number: 2403

37° JIC SAE Flare Male Tube Union

Product Overview

The Delphi Fittings Part 2403 is a 37° JIC SAE Flare Male Tube Union, designed to create a secure, in-line connection between two flared tubes or two female JIC swivel fittings of the same size. This straight union features male JIC 37° flare ends on both sides. The JIC (Joint Industry Council) connection is a widely adopted standard in hydraulic systems, known for its reliability and reusability due to the metal-to-metal seal on the 37-degree flare cone. Manufactured from high-quality carbon steel and zinc-plated for corrosion resistance, the Part 2403 union is ideal for high-pressure applications in mobile equipment, industrial machinery, and various fluid power systems.

Key Features & Specifications

Material High-Grade Carbon Steel
End 1 Configuration Male 37° JIC Flare (per SAE J514 / ISO 8434-2)
End 2 Configuration Male 37° JIC Flare (per SAE J514 / ISO 8434-2)
Body Style Straight Union with Hex Body for wrench tightening.
Sealing Mechanism Metal-to-metal seal on the 37° flare cone with mating female JIC swivel nuts or flared tube ends.
Primary Function To connect two female JIC swivel fittings or flared tubes of the same size in a straight line.

Commonly Available Sizes (Part #2403 Series)

Delphi Fittings offers the 37° JIC SAE Flare Male Tube Union in a comprehensive range of common JIC sizes. These unions typically feature the same JIC male thread size on both ends.

Examples include (Male JIC x Male JIC):

  • 2403-02: 1/8" (5/16-24) JIC Male x 1/8" (5/16-24) JIC Male
  • 2403-03: 3/16" (3/8-24) JIC Male x 3/16" (3/8-24) JIC Male
  • 2403-04: 1/4" (7/16-20) JIC Male x 1/4" (7/16-20) JIC Male
  • 2403-05: 5/16" (1/2-20) JIC Male x 5/16" (1/2-20) JIC Male
  • 2403-06: 3/8" (9/16-18) JIC Male x 3/8" (9/16-18) JIC Male
  • 2403-08: 1/2" (3/4-16) JIC Male x 1/2" (3/4-16) JIC Male
  • 2403-10: 5/8" (7/8-14) JIC Male x 5/8" (7/8-14) JIC Male
  • 2403-12: 3/4" (1-1/16-12) JIC Male x 3/4" (1-1/16-12) JIC Male
  • 2403-14: 7/8" (1-3/16-12) JIC Male x 7/8" (1-3/16-12) JIC Male
  • 2403-16: 1" (1-5/16-12) JIC Male x 1" (1-5/16-12) JIC Male
  • 2403-20: 1-1/4" (1-5/8-12) JIC Male x 1-1/4" (1-5/8-12) JIC Male
  • 2403-24: 1-1/2" (1-7/8-12) JIC Male x 1-1/2" (1-7/8-12) JIC Male
  • 2403-32: 2" (2-1/2-12) JIC Male x 2" (2-1/2-12) JIC Male

Note: JIC sizes are often denoted by dash numbers or their UNF thread size. A Large Hex version (Part #2403LH) is also available for easier wrench access. For unlisted sizes, please contact our sales team.

Applications

The Part 2403 JIC Male Union is widely used for:

  • Joining two hydraulic hoses equipped with female JIC swivel nuts.
  • Connecting two sections of flared tubing in a straight line using JIC nuts and sleeves.
  • Extending existing JIC hydraulic lines.
  • Applications in mobile equipment (construction, agriculture), industrial machinery, material handling, and transportation hydraulics.
  • General high-pressure fluid transfer systems where reliable, reusable connections are required.

Installation & Usage Guidelines

  • Ensure both male JIC flare ends of the union and the mating female JIC seats (either in a swivel nut or a flared tube assembly) are clean, undamaged, and free of contaminants.
  • Align the union with the mating female JIC fittings.
  • Thread the female JIC swivel nuts onto the male JIC flare ends of the union by hand until finger tight. Ensure the 37° flare surfaces are correctly aligned and seat properly.
  • Use two wrenches: one to hold the union body steady (backup wrench) and one to tighten each JIC swivel nut to the recommended torque. Do not overtighten, as this can damage the flare.
  • No thread sealant is required for JIC flare connections as the seal occurs on the metal-to-metal flare seat.

Why Choose Delphi Fittings Part 2403?

  • Reliable JIC Connection: Provides a secure and proven metal-to-metal seal based on the 37° flare design.
  • Excellent Reusability: Can be disconnected and reconnected multiple times without compromising seal integrity, provided sealing surfaces remain undamaged.

Get a Quote for Part 2403 - 37° JIC SAE Flare Male Tube Union

For dependable straight connections within your JIC 37° flare hydraulic systems, the Part 2403 Male Union is an industry-standard solution. Contact Delphi Fittings for wholesale pricing, bulk order information, and expert assistance with your fitting needs.

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