Aerospace series. Plug, protective, non-metallic, for EN 6123 fitting ends1 Scope This document specifies the dimensions, tolerances and required characteristics of protective plugs, nonmetallic, for EN 6123 fitting ends to seal fluid ports during transportation and storage in order to prevent contamination by moisture, fluids, chemicals and particles, spillage inside package or aircraft section, port and pipe end damages and port and pipe clogging due to plug ingestion. Because of the cleanliness requirements, parts shall

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