MIL-DTL-26666 Hose Assembly, Pneumatic, High PressureThis specification covers the requirements for a hose assembly, pneumatic, high pressure having a nominal working pressure of 4,000 psig \(275.79 bar\) in the operating temperature range of -65 to +160 Degrees F \(-53.89 Degrees C to 71.11 Degrees C\). DO NOT USE FOR OXYGEN. DO NOT USE ON AIRCRAFT.