The Defence Security Co-operation Agency (DSCA) has notified the US Congress of three separate deals.
The first would involve the sale of 346 Sidewinder missiles as well as maintenance and technical support. If all options are exercised, this contract would be worth $164m.
The second deal is for the upgrade of AN/FPS-117 long-range radar systems throughout the kingdom.
Saudi Arabia has told Washington that 17 of its current systems are in need of an upgrade. This deal is worth up to $145m, including options.
The third deal, worth up to $31m, is for information distribution systems to be installed on the Typhoon Eurofighter jets that Riyadh has ordered from the UK.
Saudi Arabia confirmed it was to buy 72 of the aircraft in a deal worth £4.4bn ($8.8bn) late last year, and is believed to be considering a further order (MEED 20:11:07).