0000898430-01-503334 424B5 1 20011109 NORTHROP GRUMMAN CORP /DE/ 0001133421 3812 954840775 DE 1231 424B5 33 333-71290 1780927 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 424B5 1 d424b5.txt FORM 424B5