#6 ORB Male to 5/16 Male Barb Fitting

The #6 ORB Male to 5/16 Male Barb Fitting is a precision adapter designed for high-performance fuel and fluid systems in automotive applications, particularly in custom builds and engine tuning projects. This straight-through fitting bridges the gap between AN-sized hard-line connections and smaller barbed hose ports, making it essential for integrators working with forced induction systems, fuel distribution networks, and aftermarket fuel management setups. The adapter enables seamless transitions between different hose diameter standards without requiring bulky manifolds or compromising system integrity.

Manufactured by Deathschwerks, a leader in precision fuel system components, this fitting features aerospace-grade aluminum construction with titanium anodized finish—a corrosion-resistant, lightweight coating that withstands aggressive fuel formulations and extended service intervals. The O-ring male threads on the #6 AN side ensure a leak-proof seal when mated to corresponding female ports, while the 5/16-inch barbed outlet accepts standard hose clamps for reliable compression-fit attachment to flexible tubing. The straight geometry eliminates flow restrictions and turbulence, critical for maintaining precise fuel pressure and delivery rates in carbureted, port-injected, and direct-injection systems.

This adapter is indispensable for tuners and fabricators integrating aftermarket fuel pumps, surge tanks, regulators, and distribution blocks with existing or custom hose runs. It is compatible with any system using #6 AN male threads—common on fuel rail outlets, regulator inlets, and high-flow filter housings—and works with standard 5/16-inch ID hose lines. Lightweight at just 0.03 lbs, the fitting minimizes assembly weight while delivering the durability required in street, strip, and circuit applications where fuel system reliability directly impacts engine performance and safety.