Network Associates Inc. of Rockville won a $3 million contract from the Air Force for network-monitoring and analysis tools.

The company's federal group division will provide Sniffer Total Network Visibility products to the Air Force. The products warn companies when a problem is about to occur in a computer network. The software also helps a company solve the problems to prevent the network from crashing.

Network Associates, the world's eighth largest independent software company, provides government and private companies with software to keep computer networks running and software to maintain network security.

Royal Ordnance North America Inc. of Arlington won a $18.4 million contract from the Army for operation of government-owned facilities.

AT&T Technical Services Co. of Herndon won a $9.2 million contract from the Postal Service for professional, administrative and management support services.

Dun & Bradstreet Government Services in Arlington won a $5.6 million contract from General Services Administration for professional, administrative and management support services.

Preferred Temporary Services Inc. of Washington won a $5 million contract from General Services Administration for professional, administrative and management support services.

Diplomatic Language Services Inc. of Arlington won a $4.5 million contract from General Services Administration for translation and interpretation services.

Centennial Contractors Enterprises Inc. of Vienna won a $4.3 million contract from the Army for property maintenance and repair services.

Lord & Co. of Manassas won a $2.9 million contract from the National Aeronautics and Space Administration for emergency alarm-response systems repair services.

ITT Corp. of Roanoke won a $1.3 million contract from the Army for communications equipment.

Parkard Construction of Newington won a $999,999 contract from the Health and Human Services Department for building repair services.

Tessada & Associates Inc. of Newington won a $874,307 contract from the Fleet and Industrial Supply Center for warehouse services.

Summit Research Corp. of Gaithersburg won a $813,235 contract from the Navy for anti-submarine warfare exercise planning.

George Mason University of Fairfax won a $794,032 contract from the National Library of Medicine for research and development services.

Am-Liner East Inc. of Vienna won a $647,000 contract from the Navy for property maintenance and repair services.

Dun & Bradstreet Government Services in Arlington won a $560,000 contract from the General Services Administration services.

Cochran Construction Co. of Hampton, Va., won a $479,500 contract from the National Aeronautics and Space Administration for property maintenance and repair services.

Moore North America Inc. of Laurel won a $343,351 contract from the Government Printing Office for photographic, mapping, printing and publication services.

AAI Corp. of Hunt Valley won a $339,610 contract from the Navy for research and development services.

Newport News Shipbuilding of Newport News won a $325,000 contract from the Navy for ships, small craft, pontoons and floating docks.

PRC Inc. in McLean won a $200,000 contract from the Commerce Department for operation of government-owned facilities.

American Tower Corp. in Alexandria won a $159,235 contract from the State Department for lease or rental of facilities.

Goodway Graphics of Virginia Inc. of Springfield won a $148,318 contract from the Government Printing Office for photographic, mapping, printing and publication services.

Westfield Realty Inc. in Arlington won a $138,118 contract from the State Department for lease or rental of facilities.

Limitorque Corp. in Lynchburg, Va., won a $91,125 contract from the Defense Supply Center for valves.

Comptech Corp. in Rockville won a $62,263 contract from the Defense Supply Center for valves.

Marlin Graphics of Baltimore won a $69,694 contract from the Government Printing Office for publication services.

Tate Andale Inc. of Baltimore won a $62,270 contract from Fleet and Industrial Supply Center for valves.

Moore North American Inc. in Laurel won a $58,338 contract from the Government Printing Office for photographic, mapping, printing and publication services.

Peake Printers Inc. of Cheverly won a $55,106 contract from the Government Printing Office for publication services.

L.L. Hair Services of Silver Spring won a $54,868 contract from the National Institutes of Health for wigs for chemotherapy patients.

The contracts listed were awarded by the federal government to companies and other vendors in Virginia, Maryland and the District.