* Orkand Corp., a privately held Falls Church information technology government contractor, will be acquired by Harris Corp. of Melbourne, Fla., for $66 million in cash. The transaction is expected to close in early July. Orkand has more than 1,000 employees in 22 states and annual revenue of $80 million. Publicly held Harris, an international communications technology company, expects the acquisition to add 5 cents per share to earnings in its next fiscal year, which begins in July.

* Lockheed Martin, a Bethesda defense contractor, won a $30 million contract to replace the mission computer in the Air Force's B-52H bomber with a better-performing computer with more memory. The new mission computer, called the Avionics Control Unit, replaces the AP-101C computers now aboard the aircraft. Installations will begin in late 2005 and be completed by 2009.

* DLT Solutions, a Herndon high-technology government contractor, won a five-year purchase agreement worth up to $29 million from the Defense Information Systems Agency to provide Red Hat Linux open-source software to the Department of Defense.

* SRA International, a Fairfax information technology company, won a five-year contract worth up to $22.7 million to continue providing project management, systems engineering and other technical services to the Department of Defense's Office of the Deputy Under Secretary of Defense for Advanced Systems and Concepts.

Compiled from reports by Washington Post staff writers and PR Newswire.