A 20-year-old Fairfax County man pleaded guilty yesterday to a felony charge of breaking and entering with intent to violate private property rights in a break-in and disturbance at an Annandale home last June.

Kevin Harrington, 4610 Twinbrook Rd., was the second man to plead guilty to felony charges in the June 19 incident in which 15 to 20 youths allegedly stormed the home of John F. Spisak Sr. at 8304 Nightingale Ct. and assaulted Spisak and his son, John Jr.

Harrington is scheduled to be sentenced early next month and could receive up to five years in prison.

Six persons--four adults and two juveniles--were charged with offenses as a result of the incident. County police said the disturbance occurred when one member of a group leaving a party in the neighborhood noticed damage to his car and thought it had been caused by someone in the Spisak house.

Last week the Spisaks filed two suits in Fairfax County Circuit Court against Harrington; Brian E. Jones, 18, of 4516 Sonata Ct., Fairfax; and Thomas Cowperthwaite, of 4635 Denpat Ct., Annandale.

The suits, one filed on behalf of Spisak and one on behalf of his son, ask for $150,000 in compensatory damages and $500,000 in punitive damages for what they claim were "permanant and temporary injuries, pain and suffering, medical hospital and doctor expenses," plus future medical expenses and the "embarrassment, humiliation, indignity and destruction of property" suffered as a result of the incident.

Spisak testfied at an earlier hearing in the case that he suffered a broken toe and twisted neck during the incident.

Assault charges against Harrington were dropped in General District Court July 12 when Judge Stewart P. Davis found conflicting evidence concering Harrington's role in the incident.

On Aug. 3, Jones pleaded guilty to a felony charge of breaking and entering with the intention to committ assault. He is scheduled to be sentenced early next month. Jones also was found guilty July 28 of two counts of assault involving Spisak and his son. He received a suspended sentence and a $250 fine from General Distrct Court Judge Frank B. Perry.

Allen Porter, 18, of 4333 Willow Woods Dr., Annandale and Donald Gentry, 18, of 5007 King David Blvd., Annandale, each pleaded guilty to destruction of private property, a misdemeanor, in connection with the incident, Thomas Scanlan, an assistant Commonwealth's attorney said. Each received a suspended sentence and a fine, he said.

Two juveniles still face charges of breaking and entering, malicious wounding and conspiracy, Scanlan said.