schwit1 writes: One Russian aerospace industry expert noted today that three-quarters of all their satellite electronics comes from the United States: "According to [Nikolay Testoyedov], up to 75 percent of the electronic components for Russian satellites come from the US. Consequently, if it retaliates should Moscow refuse to sell RD-180 rocket motors to Washington — which Deputy Prime Minister Dmitry Rogozin has threatened — Russia's satellite program would be frozen for at least two years. "The imported electronic components in our satellites represent 25 to 75 percent of the total in communications; in military ones, somewhat less; in commercial ones, more," Testoyedov says. Of these imported components, approximately 83-87 percent come from the United States thus giving Washington the whip hand." If we stop providing these electronics he estimates that after their present stock runs out in about a year it would take at least two years before Russia could replace these American-made parts. As the above linked article at The Interpreter mentions, this is relevant in part because of recent talks about U.S. sanctions which could affect this kind of commerce.