Nudelman-Suranov NS-23

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Nudelman-Suranov NS-23
Sadyba MiG-15 NS-23.jpg
NS-23 cannons on a Mig-15 at Muzeum Polskiej Techniki Wojskowej, Warsaw
Place of originUSSR
Service history
Used byUSSR
WarsCold War
Production history
No. built28,479
Mass37 kilograms (82 lb)
Length198.5 centimetres (6.51 ft)
Barrel length145 centimetres (4.76 ft)

Shell weight175 g (6.2 oz)
Caliber23 millimetres (0.91 in)
Actionshort recoil
Rate of fire550 rpm
Muzzle velocity690 metres per second (2,300 ft/s)
Feed systembelt

The NS-23 was a 23 mm (0.91 in) aircraft cannon designed by A. E. Nudelman, A. Suranov, G. Zhirnykh, V. Nemenov, S. Lunin, and M. Bundin during World War II as a replacement for the Volkov-Yartsev VYa-23 cannon. It entered service in 1944. The NS-23 round was derived from the 14.5×114mm anti-tank round by necking it out to 23 mm.

A synchronized version, designated NS-23S (for synchronized), was used for fixed installations firing through the propeller arc.

Applications of the NS-23 included the Antonov An-2, Ilyushin Il-10, Ilyushin Il-22, Lavochkin La-9, La-15, MiG-9, Yak-9UT, Yak-15, Yak-17, Yak-23, and Tu-4. Some early MiG-15s were also equipped with the NS-23.

The NS-23 was replaced in service by the Nudelman-Rikhter NR-23 around 1949.


  • Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 131. ISBN 978-3-200-01445-9. Archived from the original on 2009-10-19. Retrieved 2020-12-12.

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