Straight Adapter Fitting ; Size: -6 AN x 1/2in NP

The Straight Adapter Fitting -6 AN x 1/2in NP from VIBRANT PERFORMANCE is a precision fluid-line adapter engineered for high-performance hydraulic and fuel system applications. Designed for users who demand reliable connections between -6 AN (Army-Navy) male ports and 1/2-inch NPT (National Pipe Thread) male inlets, this straight adapter eliminates costly custom fabrication and reduces installation complexity. It serves automotive enthusiasts, professional mechanics, and engineers building or modifying fuel delivery systems, cooling circuits, and brake lines where space-efficient, leak-free connections are non-negotiable.

Constructed from aluminum and finished in black anodized coating, this fitting resists oxidation and corrosion in harsh engine bay environments while maintaining a lightweight profile at just 0.06 lbs. The straight configuration ensures minimal pressure drop and unrestricted flow compared to 90-degree elbows, critical for systems where hydraulic efficiency and consistent line pressure matter. AN fittings are SAE-standardized, providing repeatable diameter measurements and proven compatibility across aftermarket performance platforms—the -6 specification corresponds to 3/8-inch hose inner diameter, a common size for mid-range fuel and coolant applications.

This adapter is ideal for builders transitioning between AN braided-hose assemblies and threaded NPT manifold ports, common in fuel rails, water blocks, and pressure-regulator installations. Installation requires hand tools only—no special wrenches—and is compatible with standard -6 hose end fittings and NPT-threaded ports found on performance pumps, filters, and engine blocks. Verify NPT port size (1/2-inch) and AN hose diameter (3/8-inch) before purchase to ensure correct fitment on your specific vehicle or system.