Hi-Flow 45° flare brass tube fittings are similar to JIC except for the angle of the flare. Common applications: natural gas, refrigeration, power steering, high pressure hydraulic and pneumatic systems. Used with: copper, brass, aluminum and steel hydraulic tubing that can be flared or that have the appropriate hose end. Pressure and Vibration: working pressue is up to 2000 psi depending on the tube and has good vibration resistance. Advantages: low cost and reusable, long or short nut. Comformance: meets ASA, ASME, SAE and MS specifications and standards.