Company: NOC
Filing Date: 2025-05-28
Form Type: 424B5
Source: 0001193125-25-129530
Chunk: 8

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-28
Form: 424B5
Chunk 8
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 holders of any notes, create and issue additional notes of any series in separate offerings. If these additional notes have substantially the same terms as any series of notes offered hereby (except in  
 some cases for the issue date, the issue price, the initial interest payment date and corresponding record date and the initial interest accrual date), we may consolidate these additional notes with the applicable series of notes to form a single 
 series under the indenture; provided, however, that in the event any additional notes are not fungible with any series of notes offered hereby for U.S. federal income tax purposes, such nonfungible additional notes will be issued with             
 a separate CUSIP number so that they are distinguishable from the notes offered hereby. See “Description of notes—Issuing additional notes” in this prospectus supplement.                                                                             |

| No listing: | We do not intend to list the notes on any securities exchange. The notes will be new securities for which there currently is no public market. See “Risk factors— Risks related to the offering—You may not be able to sell your 
 notes if an active trading market for the notes does not develop” in this prospectus supplement.                                                                                                                                 |

| Trustee: | The Bank of New York Mellon. |

| Governing law: | The indenture governing the notes and the notes will be governed by, and construed in accordance with, the laws of the State of New York. |

| Risk factors: | Investing in the notes involves risks. See the section titled “Risk factors” beginning on page S-8 of this prospectus supplement and in the documents incorporated by reference herein and                      
 other information included in the accompanying prospectus and the documents incorporated by reference therein for a discussion of factors you should carefully consider before deciding to invest in the notes. |

S-7

Risk factors

Your investment in the notes is subject to certain risks. This prospectus supplement does not describe all of the risks of an investment in the notes. You should consult your own financial and legal advisors about the risks entailed by an investment in the notes and the suitability of your investment in the notes in light of your particular circumstances. For a discussion of the factors you should carefully consider before deciding to purchase any notes that may be offered, please read “Risk Factors” in our Form 10-Kfor the year ended December 31, 2024 (our “Form 10-K”),as well as the risk factors described below. Additional risks and uncertainties not currently known to us or that we currently deem