6AN Female Flare To Three Eighths Inch Compression Hardline Fitting Aluminum Black Two Pack Pro Grade For Auto Racing Fuel Oil And Air Lines With Brass Ferrule And 37 Degree Seal

Aluminum 6AN to 3/8 in Compression Hardline Fittings, 2-Pack
✔️ 6AN to 3/8 in compression, aluminum alloy, brass ferrule, 37° seal

These compact aluminum fittings connect 6AN flare to 3/8 in hardline in fuel, oil, and air line systems. They’re commonly used in auto racing, engine mods, and performance builds where reliable, leak-free connections are critical.

✅ 6AN female to 3/8 in compression; fits 3/8 in OD hardline (9.53 mm)
✅ Thread: 9/16-18 UNF (14.29 mm) for a tight seal
✅ Material: aluminum alloy body with brass ferrule for durability
✅ Seal: 37-degree flare provides leak-free operation in fuel/oil lines
✅ Pack: 2-piece set, black anodized finish

💡 What is a flare fitting used for in automotive fuel lines?

- Handy for high-pressure connections in engines - Useful for secure, leak-free lines in fuel, oil, and air systems - Works best with compatible stainless or aluminum hardlines when ferrules are used