Building or repairing a high-performance power steering system? This Russell fitting is a key adapter. It's part number 640380. One end is a male -6 AN (37-degree flare) fitting, which is standard for braided stainless steel hose ends. The other end is a male 5/8-18 thread with an inverted flare seat, which is a common thread size for connecting to power steering boxes, pumps, or steering racks on many classic muscle cars and hot rods. The fitting is made by Accurate/Russell and is a performance part, made in the USA. It's brand new in the package. Using AN fittings and braided hose is a popular upgrade for cleaner looks and more reliability over factory rubber hoses. This specific adapter lets you connect an AN hose to a standard inverted flare port. Make sure the thread sizes match your components before buying. A small but crucial part for a custom power steering setup.
