This standard BS EN 3789:2001 Aerospace series. Pipe coupling 8°30'. Protective plug with external threads is classified in these ICS categories:
49.080 Aerospace fluid systems and components
This standard specifies the characteristics for plastic plugs for pipe couplings 8°30' used to protect the couplings during transportation, storage and removal of units in system, for aerospace applications. The plugs incorporate an external thread for screwing on to the threaded portion of a pipe coupling.
