Union Adapter Fitting -20AN x -20AN

The Union Adapter Fitting -20AN x -20AN is a critical connector component designed for high-pressure fluid systems in performance automotive, aviation, and industrial hydraulic applications. This straight-through adapter serves dual -20AN male ports, enabling seamless integration between hoses, valves, pumps, and manifolds without directional change. Whether you're assembling a custom fuel system, upgrading brake lines, or configuring cooler circuits, this fitting bridges incompatible hose ends or consolidates multiple connections into a single, leak-free joint.

Manufactured from aluminum and finished in black anodized coating, this union adapter provides both corrosion resistance and lightweight durability essential in demanding environments. The -20AN designation indicates both ports conform to the AN (Army-Navy) standard thread specification, ensuring precise 37-degree JIC flare compatibility and reliable pressure ratings. Black anodizing protects the aluminum substrate against oxidation while maintaining a professional appearance and reducing thermal conductivity—critical in systems exposed to temperature extremes. The straight configuration maximizes flow efficiency and minimizes pressure losses compared to angled alternatives, making it ideal for inline applications where space and performance are equally important.

This union adapter fitting benefits fuel system builders, drag racing teams, vintage aircraft restoration specialists, and hydraulic equipment manufacturers who demand precision and reliability under pressure. Installation is straightforward: hand-tighten first, then secure with a wrench on both hexagonal bodies to prevent rotation and ensure leak-free sealing. Compatible with any -20AN hose assembly, JIC flared tubing, or male AN ports, this adapter consolidates your plumbing without adapting down in thread size. Its compact footprint (4.53 x 1.5 x 5.91 inches) and light weight (0.21 lbs) make it practical for space-constrained engine bays, cockpits, and manifold blocks. Verify thread pitch and port orientation before installation to avoid incompatible connections.