Steel Brake System Adapter, -03 Male JIC 37 deg Flare To 7/16-24 Male 42 deg Inverted Flare, Straight

It bridges those two styles directly. One side is a -03 male JIC 37 degree flare, and the other side is a 7/16-24 male 42 degree inverted flare, in a straight steel adapter body.

Yeah, that's exactly what this fitting is built for. One end is a -03 Male JIC with a 37-degree flare, and the other is a 7/16-24 Male with a 42-degree inverted flare. Straight configuration, no additional adapters needed between those two connection types. It's made by Eaton Aeroquip, so the machining and thread tolerances are consistent with what you'd expect from a production-grade brake component.