The 第404飛行隊 is a tanker squadron of the 1st Tactical Airlift Group of the Japan Air Self-Defense Force based at Komaki Air Base in Aichi Prefecture, Japan. It is equipped with four Boeing KC-767J aircraft.

The Japan Air Self-Defense Force , JASDF , also referred to as the Japanese Air Force, is the air and space branch of the Japan Self-Defense Forces, responsible for the defense of Japanese airspace, other air and space operations, cyberwarfare and electronic warfare. The JASDF carries out combat air patrols around Japan, while also maintaining a network of ground and air early-warning radar systems. The branch also has an aerobatic team known as Blue Impulse and has provided air transport in UN peacekeeping missions.