Straight Adapter Fitting #12 x 1/2 MPT Black

The Straight Adapter Fitting #12 x 1/2 MPT Black from FRAGOLA is an essential component for any serious custom fuel system or hydraulic line build. This adapter bridges two different thread sizes—a #12 AN (7/16"-20 UNF) port and a 1/2" male pipe thread (MPT)—making it indispensable for integrating OEM fuel rails, carburetors, or pressure-regulated systems into modern performance platforms.

Manufactured by FRAGOLA, a trusted name in motorsports plumbing for over four decades, this straight adapter is precision-machined from aluminum and finished in satin black to resist corrosion in under-hood environments. The #12 AN (7/16"-20) female inlet accepts industry-standard AN hose fittings and crimp-style adapters, while the 1/2" MPT outlet threads directly into NPT-threaded ports on fuel pumps, filter heads, or manifold blocks. The straight geometry eliminates flow turbulence compared to 90-degree elbows, reducing pressure drop—critical in high-flow fuel systems or when stacking multiple filters and regulators.

At just 0.08 lbs, the compact 4.15-inch length fits tight engine bays without requiring rerouting of hoses or lines. This fitting is ideal for fuel system fabricators, hot rodders, and performance enthusiasts looking for reliable and efficient connections in their setups.