Transact SQL :: How To Select Result From OPENQUERY Into A Variable

I have the following SQL. I need the results to be in the @NSTATUS variable. How do I do this?

DECLARE    @HISTORY_ID        INT,
        @NSTATUS    VARCHAR(20),
        @IMPORT_DATE    DATETIME,
        @TSQL            VARCHAR(8000);
SET        @HISTORY_ID = 350721;
   SET @TSQL = 'SELECT DM_IMPORT_STATUS FROM OPENQUERY(NGDEV2_LINK2, ''SELECT DM_IMPORT_STATUS from NEXTGEN.PARTY_HISTORY WHERE PARTY_HISTORY_ID = ''''' + CAST(@HISTORY_ID as nvarchar(30)) + ''''''')'
   SELECT @TSQL, @HISTORY_ID;
   EXEC (@TSQL) ;