This steel adapter makes it easy to connect your OEM hard lines to aircraft-type plumbing.
One end has a standard 6AN (9/16-18, 37° flare) male JIC fitting to accept any female 6AN hose end. The other end has a female port that accepts a 5/8-18 male fitting with an SAE J512 inverted flare. (The 5/8-18 thread size is typically used with 3/8" OD hard line.)
Mild steel construction makes this suitable for virtually any application including power steering. Sold individually.