The NSV is a heavy machine gun of Soviet origin. It was developed in the late 1960's to replace the DShK in Soviet service which was found too heavy and expensive and had a limited rate of fire. The NSV is named after its three designers, but is also known by its nickname Utes. The NSV can be used on a tripod but is primarily used as vehicle armament and can be found on all modern Soviet tanks.

The NSV is a heavy machine gun that is relatively light. It is gas operated and uses a long stroke gas piston. The NSV is belt fed and exists in both right hand and left hand feed models which are both available with or without iron sights. When in use with infantry a pistol grip and shoulder stock are fitted and optical sights are optional. It is also available as vehicle armament with a solenoid trigger.

The NSV fires the 12.7x108mm round from 50 round belts and fires fully automatic only. The cyclic rate of fire is about 700 to 800 rpm. Even though the NSV is not very accurate it can be used out to 1.5 km. The high rate of fire makes the NSV more useful as an anti-aircraft machine gun than the older DShK.

The primary user of the NSV was the USSR. It was used both on ground mounts and vehicles. After the breakup the NSV was no longer produced in Russia and combined with the desire for a more accurate weapon the Kord was developed. The NSV remains in production in various nations and has been exported to many nations, although not nearly in the same quantities as the older DShK.