0000898430-01-001148 424B3 1 20010402 NNG INC 0001133421 3812 DE 1231 424B3 33 333-54800 1588967 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 424B3 1 0001.txt FORM 424(B)(3)