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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0206 </schemaVersion> |
| <documentType> 3/A </documentType> |
| <periodOfReport> 2020-01-01 </periodOfReport> |
| <dateOfOriginalSubmission> 2020-01-09 </dateOfOriginalSubmission> |
| <noSecuritiesOwned> 0 </noSecuritiesOwned> |
| <issuer> |
| | <issuerCik> 0001133421 </issuerCik> |
| | <issuerName> NORTHROP GRUMMAN CORP /DE/ </issuerName> |
| | <issuerTradingSymbol> NOC </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001791724 </rptOwnerCik> |
| | | <rptOwnerName> Petryszyn Mary D </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> 2980 FAIRVIEW PARK DRIVE </rptOwnerStreet1> |
| | | <rptOwnerStreet2></rptOwnerStreet2> |
| | | <rptOwnerCity> FALLS CHURCH </rptOwnerCity> |
| | | <rptOwnerState> VA </rptOwnerState> |
| | | <rptOwnerZipCode> 22042 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isOfficer> 1 </isOfficer> |
| | | <officerTitle> CVP, Pres, Defense Systems </officerTitle> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeHolding> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 10633.7200 </value> |
| <footnoteId id="F1"/> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeHolding> |
| | </nonDerivativeTable> |
| <derivativeTable></derivativeTable> |
| <footnotes> |
| | <footnote id="F1"> This Form 3/A is being filed to revise the amount of securities beneficially owned by the reporting person. </footnote> |
| | </footnotes> |
| <ownerSignature> |
| | <signatureName> /s/ Jennifer C. McGarey, Attorney-in-Fact </signatureName> |
| | <signatureDate> 2020-01-13 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |