AN To NPT 90 Degree -3 x 1/8in

The AN to NPT 90 Degree -3 x 1/8in adapter (SKU ALL 49562) is a precision-engineered fitting designed to bridge incompatible hydraulic and pneumatic line standards in high-pressure fluid power systems. This 90-degree adapter converts a -3 AN (Army-Navy) male port to a 1/8 inch NPT (National Pipe Thread) male connection, enabling seamless integration between aerospace-grade and industrial piping networks commonly found in hydraulic systems, fuel delivery assemblies, and pneumatic control circuits.

Constructed from aluminum with black anodized finish, this fitting delivers corrosion resistance and lightweight performance essential for mobile hydraulic platforms and aerospace applications where weight and durability are critical. The 90-degree configuration allows installation in tight spaces where straight adapters cannot fit, reducing system complexity and material costs. AN fittings maintain consistent fluid velocity across connections, while NPT female threads provide reliable grip in industrial manifolds and block ports. The compact footprint (2.05 x 0.95 x 4.1 inches, 0.04 lbs) suits retrofit installations on existing equipment without requiring extensive redesign or space modifications.

This adapter addresses a specific integration challenge: connecting modern aerospace-specification AN hose assemblies to legacy NPT-threaded components in aircraft hydraulic systems, agricultural machinery, industrial compressors, and recovery winches. Technicians working with mixed-standard fluid systems—particularly those servicing vintage or multi-source equipment—rely on adapters of this type to avoid costly line fabrication and maintain system integrity across pressure ratings.

AN fittings and NPT threads operate under different sealing principles. AN relies on metal-to-metal face sealing at the junction, while NPT uses thread-form compression. This adapter handles the transition correctly when paired with appropriate sealing compounds on the NPT side, ensuring leak-free operation across temperature and pressure cycling typical in field use.