Blue Anodized Aluminum Adapter, -08 Male JIC 37 deg Flare To 1/4 Inch Male NPT, Straight

This adapter is designed for hydraulic applications, so it should handle 2000 psi without any problems, assuming the fluid is compatible. You can check the linked fluid compatibility document for more details.

That's what this adapter is built for. One end is a -08 male JIC 37 degree flare, the other is 1/4 inch male NPT, straight configuration. Both ends are male, so make sure your mating ports are female on both sides before ordering. It's an Eaton Aeroquip piece, catalog number C1EA68, and the blue anodized aluminum construction keeps it lightweight without sacrificing durability for standard hydraulic service.