субъект федерации(The draft Yeltsin constitution (1992), following through on the summer convention, equalized the status of the federation subjects, converting Russia from an asymmetrical to a symmetrical federation – by Christopher Barker Tamerlane)
субъект РФ(Wikipedia state.govTanya Gesse; this is not English, and I could not find the phrase on the state dept site - maybe they took it off (wisely!). And if it is in Wikepedia, it needs to be edited out! tfennell)