Parshin said the Russian archives show that the missile that was made of these parts was transported to a military unit in western Ukraine in 1986 and to Russia's knowledge, never left Ukraine.
Asked about the possibility that the separatists may have seized the missile system during fighting in 2014, ministry spokesman Maj Gen Igor Konashenkov conceded that Russia does not have any documents proving otherwise but pointed to the statementsof Ukrainian officials who have denied that separatists seized any of their Buks.
The Joint Investigation Team, set up by nations that lost citizens in the MH17 crash, said in a statement that it has "taken note" of the information that the Russian military made public on Monday.
The investigators said they had asked Russia for information regarding the serial numbers before but had not received a reply.
The separatists in the weeks prior to the plane crash bragged on social media about shooting down Ukrainian military aircraft.
On the day that MH17 crashed, a rebel commander posted that his troops had shot down a Ukrainian military plane.
He later said his account has been hacked and that the rebels did not shoot down any aircraft that day.
A highly placed rebel, speaking to the AP shortly after the crash, admitted that rebels were responsible.
The rebels believed they were targeting a Ukrainian military plane, the person said.
He did not speculate, however, on a possible role of the Russian military in the attack.
The Russian military did provide material assistance to the rebels, and journalists sighted sophisticated weapons in the separatist-controlled areas that were never in Ukraine's arsenals.
- with AP