The 5/8" Male JIC X Male Boss O-Ring Straight fitting 6400-10-10-O by MILISSA DIRKS is designed for high-performance hydraulic applications. This fitting features a male JIC connection on one end and a male boss O-ring on the other, providing a secure and leak-free seal. Made from high-quality materials, it is built to withstand high pressures and harsh environments. The 5/8" size ensures compatibility with various hydraulic systems. This fitting meets industry standards, making it a reliable choice for professionals in the field.