Adapter Fitting Radius Port #6 Male to #6 Port

The Russell Adapter Fitting Radius Port #6 Male to #6 Port is a precision straight adapter designed for high-pressure fluid systems that demand reliable, leak-free connections. This #6 AN (Army-Navy) male-to-male adapter is manufactured from aluminum and finished in black anodize, delivering both corrosion resistance and a professional appearance in demanding applications. Whether plumbing custom fuel systems, hydraulic circuits, or coolant lines in race vehicles, marine engines, or off-road recovery equipment, this adapter provides the secure, repeatable connection quality that engineers and technicians depend on.

The #6 AN port designation indicates a 3/8-inch nominal tube size, standard across motorsport, aviation, and high-performance hydraulic applications. The radius port design provides a smooth transition that minimizes turbulence and pressure drop, improving system efficiency and reducing heat generation—critical in systems running tight pressure margins. Black anodizing protects the aluminum body against oxidation while maintaining dimensional accuracy and thread integrity across repeated connect-disconnect cycles. The straight configuration allows direct in-line connections without requiring additional elbows, simplifying system layout and reducing overall component count.

This adapter is essential for builders and technicians customizing fuel delivery, coolant circulation, or hydraulic brake systems where factory fittings don't align with custom chassis or engine bay layouts. It's also invaluable for repairing or extending existing #6 AN line runs without cutting and re-flaring tubing. The compact 2.8-inch length and lightweight design (0.06 lbs) make it suitable for weight-sensitive applications. Russell is recognized in the performance fluid systems market for maintaining strict tolerances and material specifications, ensuring that each adapter performs consistently under pressure.

Verify that both connection points on your system use #6 AN male threads before ordering. Stocking multiple adapters in different configurations—straight, 45°, and 90°—simplifies troubleshooting and emergency system modifications during tuning or repair sessions.