Fuel Line AN Fittings
We provide high-quality AN fittings for fuel lines, ensuring reliable and leak-free performance. Our selection includes various sizes and styles, built for demanding fuel systems. Choose from durable, precision-engineered AN fittings to optimize your fuel delivery and enhance your vehicle’s performance.
Fuel Line AN Fittings Wholesale
Source premium Fuel Line AN Fittings wholesale from us. We offer a wide range of sizes and styles, built for high-performance fuel systems. Our durable, precision-engineered fittings ensure reliable, leak-free connections. Benefit from competitive wholesale pricing and enhance your product offerings with top-quality AN fittings.
AN fuel line fitting benefits
- Superior Leak Prevention: Precision-machined 37-degree flares and robust threads ensure a tight, leak-free seal, crucial for high-pressure fuel systems.
- Enhanced Durability: Constructed from high-quality materials like anodized aluminum or stainless steel, AN fittings withstand harsh fuel environments and resist corrosion.
- Versatile Application: Available in a wide range of sizes and configurations, AN fittings adapt to diverse fuel system setups, from performance vehicles to industrial applications.
- Optimized Fuel Flow: Designed for minimal flow restriction, AN fittings maximize fuel delivery, contributing to improved engine performance and efficiency.
DF Hydraulics: Your Leading Fuel Line AN Fittings Manufacturer
DF Hydraulics, a leading hydraulic fitting manufacturer, specializes in high-performance Fuel Line AN Fittings. We deliver precision-engineered solutions, ensuring superior leak prevention and durability. As a trusted manufacturer, we offer a wide range of AN fittings, meeting the demands of high-pressure fuel systems.
5 16 fuel line to AN fitting
We provide reliable solutions for connecting 5/16″ fuel lines to AN fittings. Our selection includes adapters and fittings designed for secure, leak-free transitions. Crafted from durable materials, these fittings ensure optimal fuel flow and performance. Whether for automotive or industrial applications, we offer the precise connections you need.
6 AN fuel line fittings
We offer premium -6 AN fuel line fittings, engineered for high-performance fuel systems. Our fittings ensure a secure, leak-free connection with durable construction and precise threading. Choose our -6 AN fittings for reliable fuel delivery, optimized flow, and superior performance in demanding applications.
8 AN fuel line fittings
We offer premium -8 AN fuel line fittings, engineered for high-flow fuel systems. These fittings, crafted from durable materials, provide superior leak resistance and reliable performance. Ideal for demanding applications, our -8 AN fittings ensure optimal fuel delivery, enhancing engine efficiency and power. Trust our quality for your high-performance fuel needs.
10 AN fuel line fittings
We supply a comprehensive range of -10 AN fuel line fittings, engineered for high-flow fuel systems. Our selection includes straight, angled, and specialty fittings, all crafted from durable materials for optimal performance and leak prevention. Trust our precision-machined -10 AN fittings to deliver reliable fuel delivery in demanding applications.
Fuel Line AN Fittings FAQs
what are AN fittings?
AN fittings, short for Army/Navy fittings (though now they adhere to aerospace standards), are a type of threaded fitting used to connect flexible hoses and rigid metal tubing carrying fluid. They are designed for high-pressure applications and are commonly used in fuel systems, oil systems, and hydraulic systems in automotive, aerospace, and industrial settings.
What sets AN fittings apart is their standardized design, which includes a 37-degree flared connection. This flare, combined with the precise threads, creates a robust and leak-free seal. They are also produced to very high tolerances, ensuring reliability in demanding situations. While similar to JIC fittings, it is very important to understand that they are not precisely the same, and shouldn’t be interchanged casually.
do an fuel fittings need sealant?
Generally, AN fuel fittings do not require sealant. Their design, featuring a 37-degree flared connection, creates a mechanical seal that is intended to be leak-free without the need for additional sealants like Teflon tape or pipe dope. The precision machining and tight tolerances of AN fittings are what make this possible.
Using sealant on AN fittings can actually be detrimental. Sealants can contaminate the fuel system, potentially clogging filters or injectors. Also, the sealant can interfere with the proper seating of the flared connection, leading to leaks instead of preventing them. It is important to ensure that both the fitting and the flared tubing are clean and free of debris before assembly.
However, there are a few specific exceptions. If the flared surface is damaged or if the connection is being made to a non-standard surface, a very thin layer of a compatible sealant might be used. But, this is a rare exception and should only be done with careful consideration. The vast majority of AN fitting connections should be made dry, relying on the quality of the flare and the fitting itself to create a reliable seal.
what size AN fitting for 3/8 fuel line?
For a 3/8-inch fuel line, the commonly recommended AN fitting size is -6AN.
While -8AN might seem logical (as 8/16 is 1/2 inch), the sizing of AN fittings doesn’t perfectly align with standard fractional measurements.
The internal diameter of -6AN fittings is generally suitable for 3/8-inch lines, providing adequate flow for most automotive fuel systems.
It’s crucial to consider the specific application and fuel flow requirements. For high-performance engines or those with high fuel demands, -8AN might be preferred to minimize restrictions. However, for most standard applications using 3/8-inch fuel lines, -6AN fittings will provide a proper and reliable connection. Always confirm the internal diameter of the AN fitting with the manufacturer‘s specifications to ensure compatibility.
how to install AN fittings on braided fuel line?
1. Gather Your Tools and Materials:
- AN fittings (male and female)
- Braided fuel line
- AN hose cutter (or a sharp cut off wheel)
- Wrenches (AN wrenches are preferred to prevent damage)
- Vice (with soft jaws)
- Lubricant (light oil or assembly lube)
- Measuring tape or ruler
2. Measure and Cut the Fuel Line:
- Accurately measure the required length of fuel line.
- Use an AN hose cutter or a sharp cutoff wheel to make a clean, square cut. Avoid fraying the braid.
3. Prepare the Hose End:
- Carefully push the hose socket onto the braided hose. It may require some force and twisting.
- Ensure the socket is pushed on far enough for the hose to reach the bottom of the socket.
- Some fittings require you to pull the outer braid back slightly, exposing the inner rubber hose. Check the fitting manufacturer’s instructions.
4. Install the Nipple:
- Lubricate the threads and the inside of the hose with light oil or assembly lube.
- Screw the nipple into the hose socket. It helps to secure the socket in a vise (with soft jaws) to prevent damage.
- Tighten the nipple until it is fully seated.
5. Assemble the Fitting:
- Lubricate the threads of the fitting.
- Thread the fitting onto the assembled hose end, ensuring the 37-degree flares align correctly.
- Hand-tighten the fitting, then use wrenches to tighten it to the manufacturer‘s specified torque. Avoid overtightening, as this can damage the fitting or hose.
6. Inspect and Test:
- Visually inspect the assembled fitting for any leaks or damage.
- Pressurize the fuel system (if possible) to test for leaks before final installation.
- Be very cautious when testing fuel systems.
Key Considerations:
- Cleanliness: Ensure all components are clean and free of debris.
- Correct Tools: Use the proper tools to avoid damaging the fittings or hose.
- Manufacturer‘s Instructions: Always refer to the fitting manufacturer‘s instructions for specific guidance.
- Torque Specifications: Use a torque wrench to tighten fittings to the correct torque.
- Safety: Work in a well-ventilated area and take precautions to prevent fuel spills.