ocr: EXTERNAL TANK LIQUID OXYGEN VENT AND VALVE FARING LIQUID OXYGEN TANK INTERIANK ET/ORBITER FURWARD ATTACH LIQUID HYDRUGEN TANK ET/ORBITER AFT ATTACH PROPELLANT FEED, PRESSURIZATION LINES The liquid hydrogen tank contains 1,449,905 liters (383,066 gallons) of liquid hyarogen at -253 degrees C (-423 degreed F). The liquid oxygen tank contains 541,482 liters (143,060 gallons) of liquid oxygen at -183 degrees C (-297 degreesF).