Thisrecommended practiceencompasses design@ analysis@ fabrication@ and installation of pressurized plainmetal tubing used in fluid power systems to provide relative motion. Specific data given are for MIL-T-6845 tubing ranging from 1/4 inch to 1 inch dia.used in 3000 psihydraulic or pneumatic system@ Military Type I@ II@ III@ or IVapplied to any type of vehicle. The flexible configurations of plain metal tubing are intended for application to actuators that oscillate about a pivot@ to areas of large structural deflection such as reservoirs installation@ and to areas of extreme environment where flexible hose could not survive.