#3 Union - Steel

The #3 Union - Steel adapter fitting from FRAGOLA is a straight-through AN connector designed to join two 3 AN male ports in a single, reliable connection. Built for hydraulic and fuel line systems in automotive, racing, and tactical applications, this union fitting eliminates the need for separate hose sections and reduces potential leak points. Whether you're assembling a custom fuel delivery system, rebuilding a brake line circuit, or maintaining fluid transfer infrastructure, the #3 Union provides a direct, port-to-port solution that professionals trust.

Machined from steel and finished with zinc oxide coating, this fitting withstands high-pressure environments while resisting corrosion and oxidation. The straight-through design ensures unrestricted flow with minimal turbulence, critical for precision fuel and hydraulic systems where pressure drops and restriction create performance loss. At just 0.05 lbs and compact 1 x 0.5 x 1.5 inch footprint, the fitting integrates easily into space-constrained engine bays and equipment frames. Steel construction provides superior durability compared to aluminum alternatives, making it ideal for heavy-duty applications where vibration and thermal cycling demand material strength.

This adapter is essential for technicians and builders working with AN-standard plumbing systems, including performance fuel systems, hydraulic brake upgrades, and fluid transfer lines in military and emergency equipment. The male-to-male configuration accommodates female AN ports on hoses, manifolds, or component inlets, allowing seamless integration into existing hydraulic architectures. FRAGOLA's zinc oxide finish ensures longevity in harsh environments, while the steel construction guarantees leak-free performance under sustained pressure. Installers benefit from FRAGOLA's reputation for precision engineering and standardized AN specifications, ensuring thread compatibility and repeatability across system components.