AN to NPT Straight #10 x 1/2

The AN to NPT Straight #10 x 1/2 adapter (part number HF-90004BLK) is a precision hydraulic and pneumatic fitting designed to convert AN male threads to NPT male threads in a straight configuration. This aluminum adapter with black anodized finish bridges two of the most common thread standards in fluid power systems, making it essential for custom installations, system retrofits, and equipment integration across industrial, aerospace, and mobile hydraulic applications.

The #10 AN (also called -10) to 1/2-inch NPT conversion is a direct size match that eliminates the need for stepped adapters or multiple fittings. Aluminum construction keeps weight minimal while the black anodized finish provides corrosion resistance in harsh environments—a critical advantage in mobile equipment, marine hydraulic systems, and outdoor industrial settings where salt air and moisture accelerate rust. The straight design allows inline connection without spatial offset, making it ideal for tight spaces or where bulky elbows cannot fit. Each fitting is a single unit, simplifying inventory and installation logistics.

This adapter serves technicians and engineers who work with mixed-standard systems, where legacy NPT components must integrate with modern AN-equipped hoses or components. Hydraulic system designers use it for custom manifold builds, while fleet maintenance teams rely on it for one-off repairs where replacing entire hose assemblies is impractical. It is also common in off-road recovery equipment, agricultural machinery, and aircraft ground support systems where AN and NPT standards coexist.

AN and NPT threads are not interchangeable—NPT uses tapered threads designed for pipe sealing, while AN uses straight threads with a separate sealing surface. This adapter accounts for that difference, ensuring leak-free connections when properly installed with appropriate thread sealant. Weighing only 0.06 lbs and measuring 3 inches in length, it adds negligible bulk to system assemblies while delivering the thread compatibility needed for reliable fluid power operation.