Darryl Scott Kitt, 21, a machinist's mate 3rd class in the U.S. Navy and a graduate of Springbrook High School in Silver Spring, died Tuesday at Center City Hospital in San Diego, Calif.

His death was caused by injuries he sustained earlier that day when the motorcycle he was riding collided with an automobile, a Navy Department spokesman reported.

He had been stationed with Submarine Group Five in San Diego since July. Earlier he had served aboard the USS Gurnard, a submarine based in San Diego.

Mr. Kitt was born in Hyattsville and grew up in Silver Spring. When he was 16 years old, he traveled by bicycle for 3,200 miles through Canada and Alaska. He was an Explorer Scout.

After graduating from Springbrook, Mr. Kitt enlisted in the Navy. He trained at Great Lakes, Ill., saw duty in Orlando, Fla., Idaho Falls, Idaho, New London, Conn., and Charleston, S.C., before his assignment to the Gurnard last September. He worked in the naval nuclear propulsion program.

He is survived by his parents, Mr. and Mrs. Sheldon Kitt, and three brothers, Michael, Ronald and David, all of Silver Spring, and his grandfathers, Irving Honikman of Washington, and Isador Kitt of Silver Spring.

The family suggests that expressions of sympathy be in the form of contributions to the Darryl Scott Kitt Education Fund, Chesapeake Bay Foundation, 162 Prince George Street, Annapolis, Md. 21401.