Straight Adapter Fitting ; Size: -4 AN x 1/4in NP

The Straight Adapter Fitting -4 AN x 1/4in NP is a precision hydraulic and pneumatic connector designed for professionals who demand reliable fluid transfer in high-pressure applications. This adapter bridges two industry-standard port sizes, enabling seamless integration between -4 AN (JIC) male and 1/4-inch NPT (National Pipe Thread) male systems. Whether you're assembling fuel systems, coolant circuits, brake lines, or industrial machinery, this straight fitting eliminates the need for multiple components and reduces leak points in your assembly.

Constructed from aluminum with black anodized finish, the fitting delivers corrosion resistance and durability across demanding environments while maintaining a lightweight profile of just 0.03 lbs. The anodized coating protects against oxidation and extends service life in both wet and dry conditions. The straight design minimizes turbulence and pressure drop compared to 90-degree alternatives, making it ideal for applications where flow efficiency and system pressure retention are critical. Compact dimensions (3.2 x 0.65 x 3.55 inches) ensure it fits tight spaces without sacrificing functionality or thread engagement depth.

This adapter is most valuable for technicians, fabricators, and engineers integrating components from different manifold families or retrofit applications where standardized thread types don't naturally align. Its lightweight aluminum construction makes it popular in motorsports fuel systems, agricultural equipment, marine applications, and industrial hydraulic circuits. Installation requires standard wrenches or hoses appropriate to each end—the -4 AN side accommodates JIC fittings and hoses rated for AN sizing, while the 1/4-inch NPT end threads directly into ports, bungs, or block fittings. Verify system pressure ratings match the adapter's specifications before deployment to ensure safe operation.