The Nasatka Maximum Security Barrier NMSB IIID steel plate wedge barriers are the most proven, tested and reliable vehicle access control barrier systems in the United States and globally. From military bases and embassies to data centers and government agencies, the Nasatka steel plate wedge barrier system has become a signature standard when protecting global assets. Nasatka’s NMSB IIID feature hot-dipped galvanized steel construction, providing a one-of-a-kind vehicle barrier system with long lasting durability and corrosion protection. The NMSB IIID system offers the perfect combination of engineering achievement and maximum durability, capable of operating as a powerful security solution in harsh environments. The NMSB IIID provides a High Security Solution with ASTM M50 crash ratings (equivalent to DOS K12).