#8 Male to 3/8in. NPT Ano-Tuff Adapter

The #8 Male to 3/8in. NPT Ano-Tuff Adapter by EARLS is a precision straight fitting engineered for hydraulic and fuel system applications requiring reliable port conversion. This adapter bridges #8 AN (Army-Navy) male connections to standard 3/8-inch NPT (National Pipe Thread) male ports, making it essential for custom plumbing, automotive performance builds, and industrial fluid transfer systems. Technicians and builders rely on this fitting to consolidate incompatible thread standards into a single, leak-free junction.

Manufactured from aluminum and finished with black anodized coating, the #8 Male to 3/8in. NPT Ano-Tuff Adapter delivers corrosion resistance and durability in demanding environments. The anodized surface protects against oxidation while maintaining a professional appearance, and the aluminum construction keeps weight minimal—critical in motorsport and aerospace applications. The straight-flow design minimizes turbulence and pressure drop, ensuring efficient fluid delivery without restricting flow rates or creating dead spots that invite contaminant accumulation.

This fitting is ideal for vintage restorations, fuel injection retrofits, custom cooling loops, and high-performance hydraulic systems where adapter solutions are non-negotiable. Installation is straightforward: thread the #8 AN male end into female AN ports and the 3/8-inch NPT male end into NPT female receivers, using appropriate thread sealant or tape to prevent seepage. Compact dimensions (2.5 x 1 x 3.6 inches) allow placement in tight engine bays and equipment housings. Verify NPT port availability on your system before purchase to ensure compatibility and proper seal engagement.