Recommended for extremely high pressure hydraulic applications. ID5K is designed to meet or exceed all requirements of ISO 18752 Grade D and SAE100R13. It has been tested to 2,300,000 cycles at 133% of working pressure. This FAR exceeds SAE impulse testing at only 120% of working pressure for 500,000 cycles. Ideal for high to extremely high pressure and high impulse applications such as hydrostatic drives, mobile construction equipment, boom arms, mining trucks, excavators, forestry and agricultural machinery. Recommended Couplings: GlobalSpiral™ Couplings.