0000895345-01-500729 8-K 1 20011214 2 7 20011214 NORTHROP GRUMMAN CORP /DE/ 0001133421 3812 954840775 DE 1231 8-K 34 001-16411 1813983 1840 CENTURY PK E C/O NORTHROP GRUMMAN CORP LOS ANGELES CA 90067 3105536262 1840 CENTURY PARK EAST C/O NORTHROP GRUMMAN CORP LOS ANGELES CA 90067 NNG INC 20010129 8-K 1 sf8-k.txt