WASHINGTON (Reuters) - The U.S. State Department has approved the possible sale to Norway of five P-8A surveillance aircraft and associated support worth an estimated $1.75 billion, a Pentagon agency said on Wednesday.

Boeing Co is the lead contractor in the sale, the Defense Security Cooperation Agency said in a statement, adding that it notified the U.S. Congress of the possible sale on Tuesday. Other participants include BAE Systems PLC, General Electric Co, Northrop Grumman Corp and Raytheon Co, it said.

(Reporting by Eric Walsh; Editing by Doina Chiacu)