"The U.S. State Department on April 28 said it would deny requests to export defense hardware and services -- categories that under the U.S. Munitions List include satellites and satellite components -- to Russia as part of expanded U.S. sanctions aimed at reversing Russia's incursion into Ukraine if the exports "contribute to Russia's military capabilities." The new policy would appear to complicate a major lobbying effort that U.S. companies had been preparing to exclude at least some civil and commercial satellites from being denied a launch on Russian rockets."
Keith's note: This is getting very, very close to the things that NASA ships to the ISS on Progress and Soyuz.
"Following the announcement, ]Dmitry Rogozin, the Russian deputy prime minister] said that fresh US sanctions against Moscow could compromise US astronauts on the International Space Station (ISS). If their aim is to deliver a blow to Russia's rocket-building sector, then by default, they would be exposing their astronauts on the ISS," the Interfax news agency quoted Mr Rogozin as saying in Crimea."
"If they [the US] want to make an economic blow to the Russian rocket building industry, then they should consider using a trampoline to deliver their astronauts to the International Space Station," [Russia's Deputy Prime Minister in charge of space and defense industry] Dmitry Rogozin said."
"The United States introduced sanctions against our space industry... We warned them, we will reply to statements with statements, to actions with actions," he wrote on Twitter."
Keith's update: This doesn't help. "Trampolines" are not listed on the GSA schedule.