This specification covers one type of metal flexible hose assembly with a nominal working pressure of 2,400 psi (165.47 bar) in the operating temperature range from -65°F to +160°F (-53.89°C to +71.11°C).Intended Use: The hose assemblies covered by this specification are intended for use as flexible manifold connections on ground servicing equipment supplying breathing oxygen to aerospace equipment. The use is military unique in its intended application the hose assembly will be used in charging aerospace vehicle breathing oxygen systems and must be able to operate satisfactory with a nominal working pressure of 2,400 psig (165.47 bar) in the operating temperature range from -65°F to +160°F (-53.89°C to +71.11°C).