WASHINGTON – Raytheon Co., the Massachusetts-based maker of military missiles that has a facility in Portsmouth, R.I., and No. 1 overall defense-contractor Lockheed Martin Corp., saw millions of dollars added to their programs as part of a $604.5 billion defense budget request approved by the Senate Appropriations Committee, Bloomberg News reported last week.

The panel endorsed adding $194 million to buy 50 more Patriot-3 missile-defense interceptors made by Bethesda, Md. -based Lockheed Martin.

The committee added $163 million to purchase a second mobile air-defense radar known as the AN/TPY-2 made by Waltham, Mass.-based Raytheon.

It also added $5 million more than the Pentagon requested for Raytheon’s Tomahawk cruise missiles, though it cut $17 million from a $381.7 million Defense Department request for 89 additional Raytheon Standard Missile-6 weapons, citing unit cost increases and testing issues.

The $604.5 billion bill also includes war spending for Afghanistan. On July 19, the House passed legislation giving the Pentagon $607.1 billion in the 2013 fiscal year for weapons purchases, personnel and war operations in Afghanistan, or about $2 billion more than the Obama administration requested. The Senate version matches the White House request. A floor vote hasn’t been scheduled.

Army aviation accounts also benefited as the appropriations panel added $700 million to replace combat losses. •