SAE AS1852D

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This SAE Aerospace Standard (AS) defines the maximum allowable free opening dimensions for airframe fueling ports on civil aircraft that require the exclusive use of gasoline as an engine fuel, and the minimum free opening dimensions for airframe fueling ports on civil aircraft that operate with turbine fuels as the primary fuel type and with gasoline as the emergency fuel type. This SAE Aerospace Standards (AS) also defines the features and dimensions for airframe refueling portson civil aircraft that require the exclusive sue of turbine fuel as an engine fuel.

In addition, this document defines the minimum fuel nozzle spout dimensions for turbine fuel ground service equipment and the maximum fuel nozzle spout diameter for gasoline ground service equipment.