Although the DShK has been used in a very wide variety of roles, it is most famous as the anti-air weapon of choice for Soviet tanks throughout the Cold War. Its successor, the NSV, enjoyed much of the same fame.
The NSV is a Soviet heavy machine gun designed in the late 1960s to replace the DShK Machinegun. It is chambered in the same 12.7×108mm cartridge as its predecessor, and serves in many of the same roles, particularly as an anti-helicopter machinegun and for close defence.