"Raytheon engaged in criminal schemes to defraud the US government in connection with contracts for critical military systems and to win business through bribery in Qatar," Deputy Assistant Attorney General Kevin Driscoll said in a Justice Department statement.

The department said Raytheon has agreed to enter into two three-year deferred prosecution agreements, in which criminal charges will be dismissed if the company complies with the terms of the deal during that period.

As part of one agreement, Raytheon admitted to "two separate schemes to defraud the Department of Defense (DOD) in connection with the provision of defense articles and services, including PATRIOT missile systems and a radar system," the department said.

The other agreement relates to two counts stemming from a scheme to bribe a Qatari official and then failing to disclose those bribes in an application to the State Department.

"Both agreements require that Raytheon retain an independent compliance monitor for three years, enhance its internal compliance program, report evidence of additional misconduct to the Justice Department, and cooperate in any ongoing or future criminal investigations," the statement said.

"Raytheon also reached a separate False Claims Act settlement with the department relating to the defective pricing schemes," it added.