Priborno-Agregatnyi Otsek

The steadiest job in Russian must belong to whoever it is builds these things. Pictured is the PAO or Priborno-Agregatnyi Otsek, the service module of a Soyuz spacecraft. Since its design in the 1960s hundreds of these craft [well, over 200] have been boosted into orbit and burnt up on re-entry, and there's little reason to suppose they won't continue flying through their fiftieth anniversary in 2016. In the past year alone ten of them have been to space, four as Soyuz TMA-16 through -19, five as unmanned Progress supply ships, and the one above as the delivery vessel for the Poisk space station module.