MIL-D-85520, MILITARY SPECIFICATION: DESIGN AND INSTALLATION OF ON BOARD OXYGEN GENERATING SYSTEMS IN AIRCRAFT, GENERAL SPECIFICATION FOR (10 MAR 1983)

MIL-D-85520, MILITARY SPECIFICATION: DESIGN AND INSTALLATION OF ON BOARD OXYGEN GENERATING SYSTEMS IN AIRCRAFT, GENERAL SPECIFICATION FOR (10 MAR 1983)., This specification covers the general requirements for the design and installation of on board oxygen generating systems (OBOGS) in military aircraft