These  steel fittings are designed to fit various Early style Power steering pumps, with inverted flare seat and SAE thread applications.

P/N      11740          5/8-18 male inverted  to -6 AN male
P/N      11745          9/16-18 male inverted to -6 AN male
P/N      11750         11/16-18 male inverted to -6 AN male
P/N      11760         1/2-20 male inverted to -6 AN male