Company: NOC
Filing Date: 2025-05-27
Form Type: 424B5
Source: 0001193125-25-126289
Chunk: 6

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-27
Form: 424B5
Chunk 6
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 (as defined below), we may redeem each series of notes, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the notes redeemed plus accrued 
 and unpaid interest, if any, to, but not including, the redemption date, plus an applicable “make-whole” premium. In addition, we may redeem the notes of each series on or after the applicable Par Call Date, in whole at any time or in part      
 from time to time, at a redemption price equal to 100% of the principal amount of the notes redeemed plus accrued and unpaid interest, if any, to, but not including, the redemption date.                                                           |

| For purposes of the foregoing, “Par Call Date” means    , 20  with respect to the 20  notes (the date that is months prior to the maturity date of such notes) and , 20  with 
 respect to the 20  notes (the date that is months prior to the maturity date of such notes).                                                                                  |

| See “Description of notes—Optional redemption” in this prospectus supplement. |

| Ranking: | The notes will be unsecured senior obligations of Northrop Grumman and will not be guaranteed by any of our subsidiaries. The notes will rank equally 
 and ratably in right of payment with all Northrop Grumman’s existing and future unsecured and unsubordinated                                          |

S-6

| indebtedness and will rank senior in right of payment to any future indebtedness that is subordinated to the notes. The notes will be (i) effectively subordinated to all of Northrop                                                     
 Grumman’s existing and future secured indebtedness to the extent of the assets securing that indebtedness and (ii) structurally subordinated to all indebtedness and liabilities of Northrop Grumman’s subsidiaries, including any of our 
 future indebtedness guaranteed by our subsidiaries.                                                                                                                                                                                       |

| Certain covenants: | The indenture governing the notes limits our ability and the ability of our subsidiaries, among other things, to: |

| • |     | create liens without equally and ratably securing the notes, unless an exception applies; and |

| • |     | engage in certain sale and leaseback transactions. |

| The indenture also limits our ability to engage in certain mergers, consolidations and sales of assets. These covenants are subject