Steel Adapter, 3/4-14 Male NPT To 7/16-20 Male JIC 37 deg Flare, 90 deg Elbow

That's what this adapter is built for. One end threads into a 3/4-14 NPT port, and the other connects to a 7/16-20 Male JIC 37-degree flare fitting. The 90-degree elbow handles that directional change right at the connection point, so you're not forcing a bend into the line itself. The tube OD on the JIC side is 0.25 inches, so just make sure your mating fitting matches up before you wrench it down.

On the pipe-thread side it is 3/4-14 male NPT, and on the flare side it is 7/16-20 male JIC with a 37 degree flare. It is a 90 degree elbow.