President Reagan, as he has in past years, is scheduled to stop by at the National Italian American Foundation dinner Oct. 19 at the Washington Hilton Hotel. At that dinner, his pal Frank Sinatra will be receiving an award. Earlier that day, the famous Carabinieri Band from Rome will perform at Constitution Hall . . .

Playing before a house of some 83,000 in Memorial Coliseum in Los Angeles, the blue-collar sensation Bruce Springsteen ended his 15-month world tour Wednesday night. Over the months, Springsteen and his seven-member E Street Band played before 5 million people. At the end of the performance, the final song was "Glory Days." Springsteen then danced with his wife, model Julianne Phillips, and closed with a long kiss . . .

Three South African antiapartheid leaders have been named winners of the annual Robert F. Kennedy Human Rights Award, which will be presented at Georgetown University Nov. 20. The winners are Winnie Mandela, wife of Nelson Mandela, jailed leader of the African National Congress; the Rev. C. F. Beyers Naude, who succeeded Bishop Desmond Tutu as secretary general of the South African Council of Churches; and the Rev. Allan Boesak, free on bail after being charged with subversion and restricted to his home district near Cape Town . . .

President Reagan sent Washingtonian magazine publisher Phillip Merrill a note on the magazine's 20th anniversary, congratulating him especially for donating the money to charity he might otherwise have spent on a gala party. Always ready to use any event to make a point, Reagan wrote, "Your gift is an outstanding example of what I have in mind by urging the private sector to address pressing problems in their community" . . .