Straight Adapter Fitting -12AN x 1in NPT

The Straight Adapter Fitting -12AN x 1in NPT is a precision hydraulic and pneumatic connector designed for high-pressure fluid transfer systems, fuel lines, and industrial applications requiring secure, leak-free connections. This adapter serves as a critical interface between two different thread standards—12 AN (Army-Navy) male and 1-inch NPT (National Pipe Thread) male—making it essential for technicians, mechanics, and engineers working with performance fuel systems, custom hydraulics, and pressure equipment. By bridging these incompatible connection types, this fitting eliminates the need for multiple adapter combinations and reduces installation complexity.

Constructed from aluminum and finished with black anodized coating, this straight adapter provides corrosion resistance and durability while maintaining a lightweight profile ideal for motorsports and aerospace applications. The 12AN male connection delivers reliable sealing for high-pressure environments common in fuel injection, turbo systems, and custom fuel rails, while the 1-inch NPT male thread accommodates industrial-standard fittings used in tank ports, manifolds, and infrastructure piping. The straight design—rather than angled—allows for simplified routing in tight engine bays and equipment enclosures where space is at a premium, and the aluminum construction ensures compatibility with most hydraulic fluids and fuel types without galvanic corrosion concerns.

This fitting is ideal for custom fuel system builders, restoration specialists, and industrial equipment manufacturers seeking to consolidate mixed-thread assemblies into a single, compact component. Installation requires proper torque specifications and thread sealant to ensure pressure-tight seals, and it is compatible with any system combining AN-line plumbing on one end and NPT-threaded components on the other—from carbureted hot rods to pneumatic control systems. The compact footprint and proven aluminum construction make it a reliable choice for both prototype development and production applications where adapter consolidation reduces weight and cost.