Northrop Grumman (NYSE:NOC) reported quarterly earnings of $6.06 per share which missed the analyst consensus estimate of $6.26 by 3.19 percent. This is a 4.11 percent decrease over earnings of $6.32 per share from the same period last year. The company reported quarterly sales of $9.468 billion which missed the analyst consensus estimate of $9.936 billion by 4.71 percent. This is a 6.56 percent decrease over sales of $10.133 billion the same period last year.