Power steering problems

hi there new to the forum have a problem with high pressure hose from power steering pump as in the hose has a split in it and seeps fluid out I want to replace it with a flexible hydraulic line but nee to know pipe thread sizes anyone know where to get sizes from

The fittings on the ends use a compression O ring. The pipe end itself has to be made in a machine. The best you will do there is get one made at a hydraulics shop. It will be far easier to get a replacement line at an auto parts store