AN To NPT 45 Degree -12 x 1/2in

The AN to NPT 45 Degree -12 x 1/2in adapter from ALLSTAR PERFORMANCE is a critical fitting for high-pressure fluid systems requiring reliable port connection. Designed for racing, automotive, and hydraulic applications, this adapter bridges AN (Army-Navy) male connections to NPT (National Pipe Thread) male ports at a precise 45-degree angle. The compact form factor and anodized aluminum construction make it an essential component for custom fuel lines, oil systems, and coolant circuits where space and sealing integrity are paramount.

This adapter features a -12 AN male thread on one end and a 1/2-inch NPT male thread on the other, with the 45-degree offset angle facilitating installation in confined engine bays and chassis layouts. The black anodized aluminum finish provides corrosion resistance while maintaining lightweight construction—critical for performance vehicles where every ounce matters. The 45-degree geometry allows hose runs to avoid interference with headers, intake manifolds, and other components while maintaining proper alignment and pressure distribution across the fitting interface. Unlike straight adapters, the angular design reduces stress concentration at connection points and minimizes turbulence in fluid flow.

Street rods, race cars, and modern performance platforms rely on this fitting when converting between incompatible thread standards during fuel system upgrades, turbo installations, or custom cooling modifications. The -12 AN size (approximately 3/4-inch hose ID) accommodates moderate to high-volume applications without excessive pressure drop. Installation requires proper thread sealant on NPT connections to prevent fluid weepage; wrench flats are machined to prevent spinning during installation. This ALLSTAR PERFORMANCE adapter delivers the durability and precision fitment expected in competitive motorsports and serious street builds.