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PARTS SPECIFICATION SYSTEMS

The U.S. National Aeronautics and Space Administration (NASA) adopt MIL-STD-975 as Standards Electrical, Electronic and Electromechanical (EEE) Parts List, consisting of selected standard military specification part numbers approved for usage in NASA Space Programs.

The European Space Agency (ESA) uses its own specifications for electronic parts. The ECSS-Q-ST-60C standard defines the requirements for selection, control, procurement and usage of EEE components for space projects.

These two specification systems have the same goal, to provide a set of documents for part procurement which contain performance and testing requirements designed to provide reliable components.