Alliant Techsystems, Inc., (ATK) announced this week that it has been awarded two orders from the U.S. military-one worth $67 million and the second valued at $10 million.

The Eden Prairie-based aerospace and defense company said Wednesday that it landed the $67 million contract from the U.S. Navy to produce components for a missile warning system. The deal covers the production of new and retrofit components, including optical sensors, control indicators, and computer processors for ATK's AAR-47 missile warning system.

ATK's electronic system is designed to protect helicopters and aircraft from surface-to-air missiles, as well as laser-guided weapons. The system is installed on more than 2,600 aircraft piloted by the United States and its allies in roughly 16 countries.

“ATK's AAR-47 is a combat-proven, aircraft survivability system credited with saving numerous military aircrew lives and aircraft from attack,” Bill Kasting, vice president and general manager of ATK's defense electronics systems, said in a statement.

ATK also announced Thursday that it has received an additional $10 million in orders as part of its three-year contract to deliver non-standard ammunition to Kabul, Afghanistan. That ammunition is designed for weapons of origins outside of the United States, such as the AK-47, according to a company spokeswoman.

Under its current contract-which comes from the U.S. Army Contracting Command in Rock Island, Illinois-ATK has already delivered more than 220 million items to Afghanistan, including small-, medium-, and large-caliber ammunition, mortars, and aviation rockets, among other weapons.

ATK is among Minnesota's 20-largest public companies based on its fiscal 2009 revenue, which totaled $4.6 billion. The company reported fiscal 2010 revenue of $4.8 billion.