The AN 51 was a French tactical nuclear warhead used on the Pluton short range missile,

the Pluton system was retired in 1992–93. The warhead was based upon the MR 50 CTC (charge tactique commune - common tactical warhead) warhead, with the same physics package as used in the AN 52 bomb. It had two yields; 10 and 25 kt.

70 AN-51 warhead were produced to arm 35 Pluton short range missile and 35 others used for spare parts.

• Norris, Robert, Burrows, Andrew, Fieldhouse, Richard Nuclear Weapons Databook, Volume V, British, French and Chinese Nuclear Weapons, San Francisco, Westview Press, 1994, ISBN 0-8133-1612-X