Inverted Flare Adapter Fitting -6AN to 1/2in-20

The Inverted Flare Adapter Fitting -6AN to 1/2in-20 is a precision hydraulic and fuel system connector designed to bridge two different thread standards in a single, leak-free assembly. This straight adapter serves fuel injection systems, brake lines, transmission coolers, and custom automotive plumbing where a male -6 AN (dash six) port must connect to a 1/2-inch-20 inverted flare inlet or outlet. Whether you're building a high-performance engine bay, restoring a classic vehicle, or assembling aftermarket fuel delivery systems, this adapter eliminates the need for multiple fittings and reduces connection points that could compromise system integrity.

Manufactured from aluminum and finished in black anodize, this fitting combines lightweight construction with superior corrosion resistance and durability in harsh underhood environments. The inverted flare male design on the 1/2-20 side creates a reliable seal through compression, while the -6AN male connection provides the industry-standard JIC 37-degree flare interface. Black anodizing protects the aluminum substrate from oxidation and chemical attack, ensuring long service life even when exposed to fuel, coolant, brake fluid, and moisture. The compact 3.54-inch length and minimal weight (0.02 lbs) make it ideal for tight engine compartments where space and weight savings matter.

This adapter benefits fabricators, engine builders, and technicians who work with mixed hose and hard-line systems or retrofit applications where original equipment fittings don't align. It pairs seamlessly with standard -6AN hoses, quick-disconnects, and manifolds on one end, while accommodating legacy 1/2-20 inverted flare components on the other—making it essential for fuel injection upgrades, fuel cell installations, and transmission oil cooler circuits. Installation requires only a wrench; the straight profile eliminates flow turbulence and maintains system pressure ratings. Verify thread orientation and seat condition before assembly to ensure a dry, vibration-resistant connection.