The Defense Security Cooperation Agency made the announcement in a statement on Wednesday, saying Congress had been notified of the decision.
The Congress now has 30 days to review the proposed sale, but it is not required to take any action.
The potential salefollows a request by Saudi Arabia for continued technical assistance for Patriot Legacy Field Surveillance Program (FSP), the Patriot Advanced Capability 3 (PAC-3) and the Patriot Engineering Services Program (ESP).
The package also includes spare parts and logistical support for patriot and hawk missile systems.
Last week, the US Army awarded Sikorsky, a leading American aircraft manufacturer, a contract worth nearly $200 million to supply 17 Black Hawk helicopters to Saudi Arabia.
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The deals come as the US is under pressure to suspend its arms sales to the Saudi regime, which has been waging a deadly military aggression against Yemen since 2015.
At least 13,600 people have been killed since the start of the war.
[caption id="" align="alignnone" width="555"]
Yemenis search under the rubble of a house destroyed in a Saudi airstrike in Sana'a on August 25, 2017. (Photo by AFP)[/caption]During his first trip to Saudi Arabia last year, President Donald Trump signed a $110 billion arms deal with the Saudis, with options to sell up to $350 billion over a decade.
Facilitated by Trumps son-in-law and senior adviser Jared Kushner, the massive package includes missiles, bombs, armored personnel carriers, combat ships, terminal high altitude area defense (THAAD) missile systems and munitions.
The announcement generated backlash in Congress, with Republican Senator Rand Paul promising to work to block at least parts of the package.
The Trump administration is looking to loosen restrictions on American arms sales to boost the country's weapons industry.
The move seeks to ease export rules for military equipment from fighter jets and drones to warships and artillery, according to officials familiar with the plan.
