The $118.9 million award covers engineering, design, configuration management, integrated logistic support, database management and modernization support on Los Angeles class, Seawolf class, Virginia class and Ohio class submarines, special mission submersible interfaces, submarine support facilities and related programs.
Work is expected to begin immediately and continue through September 2012.
"Maintaining an optimal fleet for the U.S. Navy is our commitment and we take pride in not only building the world's most advanced submarines, but also maintaining them throughout their service life," said Jim Hughes, NNS vice president, Submarines and Fleet Support.
NNS is one of only two U.S. shipyards capable of building nuclear-powered submarines and has completed more than 200 ship repair projects for the U.S. government since the early 1990s, ranging from paint repair to complete hull and machinery renovation.
Huntington Ingalls Industries designs, builds and maintains nuclear and non-nuclear ships for the Navy and U.S. Coast Guard and provides after-market services for military ships around the globe.