Stainless Steel Adapter, Female JIC 37 deg Flare To 7/16-20 Male JIC 37 deg Flare, Straight Reducer

that lines up with what this adapter does. It connects a female JIC 37-degree flare on one end to a 7/16-20 male JIC 37-degree thread on the other, functioning as a straight reducer between two JIC flare connections. The tube outer diameter runs 0.63, so as long as your setup matches those specs, you're in good shape for making that transition.

For a straight reduction between JIC 37 degree flare sizes, it bridges a Female JIC 37 degree flare on one side to a 7/16-20 Male JIC 37 degree flare on the other, so you can make that step-down connection in-line.