Currently, plug doors are used only on the outer hatch doors on the Space Shuttle and International Space Station as well as on the hatch between the Orbital Module and Descent Module on the Russian Soyuz spacecraft.
Two Door Cinema Club | Door County, Wisconsin | Knockin' on Heaven's Door | Behind the Green Door | Stage Door Canteen | DOOR Neptunus | Door County | Trap Door Spiders | The Open Door | Polka Dot Door | Northport, Door County, Wisconsin | Girl Next Door | Enemy at the Door | The Spy Next Door | The Girls Next Door | Stage Door | I'm Gonna Knock on Your Door | Girl Next Door (Saving Jane song) | Back Door Man | Who's That Knocking at My Door | The Plug-In Drug | The Cellar Door | The Altar and the Door | spark plug | Mustard Plug | Knock on Any Door | De Wereld Draait Door | Wolf at the Door | Volkswagen Golf GTI Adidas 5-door. Note the "Adidas | VESA Plug and Display |