F23

F23 or F-23 may refer to:

Fluorine-23 (²³F), an isotope of fluorine
Funk F-23, an American agricultural aircraft
Getrag F23 transmission, an Italian 5-speed manual transmission
Hirth F-23, an aircraft engine
HMS Kanimbla (F23), a passenger ship requisitioned for the Royal Navy
HMS Teazer (F23), a T-class destroyer of the Royal Navy
Northrop F-23, an American fighter aircraft design, developed from the YF-23

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