DELPHI FITTINGS
Part Number: 418
37° JIC to Flareless Compression Convert-A-Flare Nut
Product Overview
The Delphi Fittings Part 418 is a 37° JIC to Flareless Compression Convert-A-Flare Nut. This innovative nut, when used with the corresponding Convert-A-Flare Sleeve (Delphi Part #419), allows for the direct connection of an un-flared hydraulic tube to a standard male JIC 37° flare fitting. This system eliminates the need for a separate flaring operation on the tube, saving considerable time and effort, especially in field repairs or installations where flaring tools may not be readily available or practical. The nut and sleeve combination creates a secure, compression-style seal on the tube, effectively adapting it to the JIC interface. Manufactured from high-quality carbon steel and zinc-plated for robust corrosion resistance, this fitting offers a convenient solution for versatile hydraulic plumbing.
Key Features & Specifications
| Material | High-Grade Carbon Steel |
|---|---|
| Thread Type (Internal) | Female JIC 37° Flare (UNF) (per SAE J514 / ISO 8434-2) - mates with male JIC fitting. |
| Design | Special extended nut designed to house and compress a Convert-A-Flare sleeve onto un-flared tubing. |
| Body Style | Hexagonal nut for secure wrench tightening. |
| Compatibility | Must be used with the corresponding JIC to Flareless Compression Convert-A-Flare Sleeve (Delphi Part #419) and suitable un-flared hydraulic tubing (e.g., steel, stainless steel) of appropriate material and wall thickness. |
| Sealing Mechanism | The nut, when tightened, forces the sleeve (Part #419) to compress and bite into the outer surface of the un-flared tube, creating a robust compression seal. The internal geometry of the nut and sleeve assembly then presents a standard JIC-compatible sealing face to the male JIC fitting. |
| Corrosion Protection | Standard Zinc Plating for enhanced durability. |
| Primary Function | To adapt an un-flared hydraulic tube to a male JIC 37° flare fitting interface, eliminating the need for flaring the tube. |
| Working Pressure | Suitable for hydraulic applications. Pressure ratings are dependent on the tube material, wall thickness, proper assembly, and the sleeve used. It is advisable to consult Delphi Fittings' technical data for specific pressure ratings for the assembly. |
Commonly Available Sizes (Part #418 Series)
Delphi Fittings offers the Convert-A-Flare Nut in sizes corresponding to common hydraulic tube outer diameters (OD) and the male JIC fittings they adapt to.
Examples (Nut size corresponds to the JIC fitting it connects to and the tube OD it accepts):
- 418-04: For 1/4" Tube OD (adapts to -04 Male JIC, 7/16-20 UNF Thread)
- 418-06: For 3/8" Tube OD (adapts to -06 Male JIC, 9/16-18 UNF Thread)
- 418-08: For 1/2" Tube OD (adapts to -08 Male JIC, 3/4-16 UNF Thread)
- 418-10: For 5/8" Tube OD (adapts to -10 Male JIC, 7/8-14 UNF Thread)
- 418-12: For 3/4" Tube OD (adapts to -12 Male JIC, 1-1/16-12 UNF Thread)
Note: This nut must be used with the corresponding JIC to Flareless Compression Convert-A-Flare Sleeve (Delphi Part #419) of the same dash size. Ensure that the tube material and wall thickness are suitable for compression-style fittings. For unlisted sizes or specific application queries, please contact our sales team.
Applications
The Part 418 Convert-A-Flare Nut, used with its matching sleeve, is ideal for:
- Connecting un-flared rigid metal tubing (such as steel or stainless steel) directly to standard male JIC 37° flare fittings.
- Field repairs, modifications, or new installations where flaring tools are unavailable, inconvenient, or where avoiding the flaring process is preferred.
- Modifying existing hydraulic systems to incorporate flareless tube connections into JIC ported components.
- Applications across various industries including mobile equipment, industrial machinery, agricultural implements, and maintenance operations requiring a quick, reliable method to connect tubes to JIC systems without flaring.
Installation & Usage Guidelines
- Ensure the tube end is cut squarely, thoroughly deburred both internally and externally, and is clean and free from any surface damage or contaminants.
- Slide the Part 418 Convert-A-Flare Nut onto the un-flared tube, with the threads of the nut facing the tube end.
- Slide the corresponding Part 419 Convert-A-Flare Sleeve onto the tube. Ensure the sleeve is oriented correctly as per its design (typically, the cutting edge or tapered compression section of the sleeve faces the tube end that will be inserted into the nut/fitting).
- Insert the tube with the nut and sleeve fully into the male JIC 37° flare fitting until the tube bottoms out against the fitting's internal seat or the sleeve appropriately engages.
- Hand-tighten the Convert-A-Flare Nut onto the male JIC fitting.
- While holding the male JIC fitting stationary with a backup wrench, use another wrench to tighten the Part 418 nut. The initial turns will engage the sleeve with the tube. Follow Delphi Fittings' recommended tightening procedure (usually a specific number of turns past finger-tight, or to a specified torque if available) to ensure the sleeve correctly bites into the tube, forming the compression seal, and properly seats against the male JIC fitting.
- Important: Avoid over-tightening, as this can damage the tube, sleeve, or fitting. Due to the nature of bite-type compression fittings, it's generally not recommended to disassemble and reassemble the connection repeatedly on the same section of tubing, as the sleeve permanently deforms the tube upon initial installation.
Why Choose Delphi Fittings Part 418?
- Eliminates Tube Flaring: Simplifies the tube end preparation process and connection to JIC systems, significantly saving time, labor, and the need for specialized flaring tools.
- Convenient for Field Installations & Repairs: An ideal solution for situations where flaring equipment is not accessible or practical to use.
- Reliable Compression Seal: Creates a strong, positive, leak-proof seal on un-flared tubing when used correctly with the matching Convert-A-Flare sleeve.
- Adapts to Standard JIC Fittings: Allows flareless tubes to connect directly to widely available male JIC 37° flare fittings, enhancing system versatility.
- Durable Material Construction: Manufactured from high-grade carbon steel for excellent strength and performance in hydraulic applications.
- Enhanced Corrosion Resistance: Standard zinc plating provides robust protection against rust and environmental degradation.
- Quality Manufacturing: Produced under Delphi Fittings' stringent ISO 9001:2015 certified quality management system.
Get a Quote for Part 418 - 37° JIC to Flareless Compression Convert-A-Flare Nut
Simplify your hydraulic connections by adapting un-flared tubing to standard JIC fittings with the innovative Part 418 Convert-A-Flare Nut and its matching sleeve. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support.
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