ManTech International Corp. won a five-year, $51.3 million contract from the Naval Sea Systems Command to provide engineering and technical support services for the Submarine and Surface Ship Signature Silencing Program.

The program is based at the Naval Surface Warfare Center Carderock Division in West Bethesda, Md., where the Navy’s marine technology experts work.

Under the contract, ManTech will provide technical and logistic support for submarine and surface ship signature measurement trials. This includes data collection, testing, analysis, operations, maintenance, logistics and repair services. The work will be performed at the division’s Bremerton Detachment and at company facilities in Bremerton, Washington.

ManTech engineers and scientists “provide the Naval Surface Warfare Center with critical acoustic support, which greatly reduces the vulnerability of Navy vessels to mines, torpedoes and other dangers,” said Kenneth Farquhar, president of ManTech Systems Engineering Corp.

Based in Fairfax, Va., ManTech provides technologies and solutions focused on mission-critical national security programs. The company employs more than 5,500 people and had 2003 revenue of $701.6 million. It is No. 22 on Washington Technology’s 2004 Top 100 list of federal prime contractors.