0000944209-01-500124 DEF 14A 1 20010516 20010413 NORTHROP GRUMMAN CORP /DE/ 0001133421 3812 DE 1231 DEF 14A 34 001-16411 1601748 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 DEF 14A 1 ddef14a.txt DEFINITIVE PROXY STATEMENT