Answer: assr

AnswerCrossword Clue
ASSRSoviet member: Abbr.
ASSRSubdivision of the Soviet federation: Abbr.
ASSRSoviet republic: Abbr.
ASSRBashkir, for example: Abbr.
ASSRPart of the Soviet: Abbr.
ASSRSoviet Govt. initials.
ASSRA Soviet adm. division