This is a summary of selected contracts recently awarded by the federal government to companies and other vendors in the Washington, Baltimore and Richmond areas.

Metro Machine Corp. in Norfolk won a $53,911,013 contract from the Navy to provide maintenance on LSD-41 class ships based in Norfolk.

Westinghouse Electric Corp. in Baltimore won a $41,708,000 contract from the Air Force to supply fire-control radars used on F-16 aircraft.

McDonnell Douglas Electronic Systems Co. in McLean, Va., won a $40,245,358 contract from the Air Force to supply an automated message-handling system for intelligence analysts.

Johns Hopkins University in Laurel won a $5,096,750 contract from the Navy to provide research, development, engineering and technical services.

SBA/Systems Integration Group Inc. in Hyattsville won a $1,538,092 contract from the U.S. Environmental Protection Agency to provide data-management support services.

Litton Systems Inc. in College Park, Md., won a $1,250,000 contract from the Air Force to supply power.

National Air Survey Center Corp. in Bladensburg, Md., won a $1,155,821 contract from the Navy to provide photographic services.

Concurrent Computer Corp. in Rockville won a $1,059,881 contract from the Navy to supply repair parts.

AAI Corp. in Hunt Valley, Md., won a $459,895 contract from the Air Force to provide logistics support services.

Bechdon Co. in Upper Marlboro won a $428,049 contract from the Navy to supply a tooling set.

Litton Systems Inc. in Blacksburg, Va., won a $413,055 contract from the Air Force to supply a slip ring.

Johns Hopkins University in Baltimore won a $364,651 contract from the Agency for International Development to provide technical support for a child survival grant program.

Westinghouse Electric Corp. in Hunt Valley, Md., won a $350,025 contract from the Air Force to supply a receiver protector.

Pepco Oil Co. in Virginia Beach. won a $324,425 contract from the Defense Fuel Supply Center for a fuel oil burner.

Oceanway Distributors in Tasley, Va., won a $303,400 contract from the Defense Fuel Supply Center for a fuel oil burner.

American of Martinsville in Martinsville, Va., won a $281,082 contract from the Air Force to supply dormitory furniture.

Digital Equipment Corp. in Fairfax won a $231,743 contract from the Boeing Computer Services to supply LPS-40 high-speed printers.

Anacomp Inc. in Baltimore won a $210,600 contract from the Bureau of the Census to supply magnetic tape cartridges.

EER Systems Corp. in Vienna won a $209,149 contract from the Army to provide cost analysis support services.

Yacht Maintenance Co. in Cambridge, Md., won a $202,840 contract from the Navy to provide ship repair services.

Enig Associates Inc. in Beltsville, Md., won a $169,617 contract from the Navy to provide a response to broad agency announcement for fundamental research in undersea warhead technology.

BM&K Builders Inc. in Colonial Beach, Va., won a $160,400 contract from the Navy to provide parking lots.

MET Electrical Testing Co. in Baltimore won a $159,000 contract from the Department of Defense to furnish and install a monitoring system for steam chiller, water and electrical usage at various Defense locations.

Chesson Consulting Inc. in Washington won a $152,421 contract from the Environmental Protection Agency to provide general statistical support for the assessment of toxic substances.

Community Assistance Program in Roanoke won a $148,580 contract from the Federal Bureau of Prisons to provide a residential community corrections center.