Am I mistaking this component for a 1000F capacitor?
It’s a 1nF (1000pF) high voltage (10kV) ceramic capacitor. The F is the tolerance (+/-7.5%). If you connect about a billion of them in parallel you will have a 1F 10kV capacitor.
You’d have to check the datasheet to see at what voltage the capacitance is specified.
Because of the high voltage rating the leads are not brought out beside each other, as would be usual.