David Earl Fleming, a Fairfax County man convicted of murder in a drunk-driving incident four years ago, pleaded guilty yesterday to driving while intoxicated in a Nov. 9 incident, marking his seventh conviction on drunk-driving charges.

Sentencing was delayed until Jan. 12, when Fleming faces charges of driving with a revoked license and contempt of court.

Fleming, 60, admitted in U.S. Magistrates Court in Alexandria that he was intoxicated last month when his car collided with another vehicle on the George Washington Parkway near Mount Vernon. Magistrate W. Curtis Sewell said Fleming's blood alcohol content at the time was 0.21 percent, more than twice the .10 level necessary to be convicted.

In 1983, Fleming was driving 80 miles per hour down the wrong side of the parkway when he slammed into a car driven by Margaret Haley, a Fairfax County mother of 11, killing her instantly. He was convicted of second-degree murder and served three years in prison.

The judge who presided over Fleming's murder trial ordered him never to drive again. But Fleming obtained a new driver's license in July, and has been charged with driving on a revoked license and contempt of court.

Fleming has been held in jail without bond since his arrest Nov. 16, and Sewell again refused to set bond yesterday.

"Mr. Fleming wanted to plead guilty {to driving while intoxicated} without any deal from the government," Richard Mendelson, Fleming's attorney, said after yesterday's hearing. "It was his decision, and an act of conscience, to plead guilty to what he did. But he has pleaded not guilty to that which he did not do."

Mendelson has contended in court papers that the judge who permanently revoked Fleming's driver's license exceeded his legal authority and that the order should be set aside. He also said yesterday that prosecutors are overreacting to public outrage and "are intent on coming up with as many devices as they can to incarcerate this man."