Travis Zajac and Zach Parise had power-play goals for the Devils, who have scored with a man advantage in a season-high five straight games. New Jersey has nine man-advantage goals during its streak, seven over its last three games.
Chris Clark scored for Washington, which has dropped two straight after going 7-1-1. Alex Ovechkin had his point-scoring streak snapped at a season-high eight games.
Brian Gionta also scored for the Devils, who have beaten the Capitals five straight times. Scott Gomez and Sergei Brylin had two assists each.