Endura Adapter Fitting #6 to 1/4 NPT Straight

The Endura Adapter Fitting #6 to 1/4 NPT Straight is a precision hydraulic and pneumatic adapter designed to connect -6 AN male ports to 1/4-inch NPT male threaded connections. This straight-configuration fitting enables seamless integration between different piping systems commonly found in high-pressure applications, fluid transfer systems, and industrial equipment where port standardization is critical.

Constructed from aluminum and finished with nickel anodizing, this adapter delivers corrosion resistance and durability in demanding environments. The nickel-anodized surface protects against oxidation while maintaining excellent chemical compatibility with common hydraulic fluids, pneumatic media, and water-based systems. The straight design eliminates unnecessary bends, reducing turbulence and pressure drop across the connection point—a critical factor in efficiency-sensitive applications where fluid or air flow rate directly impacts system performance.

This fitting serves technicians, engineers, and equipment operators who need reliable port conversion between AN and NPT standards. Common applications include hydraulic machinery retrofitting, pneumatic system upgrades, fluid transfer manifold assembly, and industrial equipment modifications where mixing connection types is necessary. The compact form factor—measuring 2.5 by 1.65 by 5.65 inches and weighing just 0.06 pounds—makes it suitable for space-constrained installations without adding significant bulk or weight to assembled systems.

AN (Army-Navy) fittings and NPT (National Pipe Thread) connections represent two distinct industry standards. AN adapters are precision-machined with tighter tolerances and flared seals, while NPT fittings rely on tapered thread engagement. This adapter bridges that gap, allowing equipment designed around one standard to interface with components built to the other—essential for system expansion, equipment integration, and maintenance scenarios where original components are unavailable or where consolidation to a single supply chain is required.