Company: NOC
Filing Date: 2025-05-27
Form Type: 424B5
Source: 0001193125-25-126289
Chunk: 23

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-27
Form: 424B5
Chunk 23
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 global note for a particular series will be registered in the name of any person, or exchanged for certificated notes of that series that are registered in the name of any person, other than DTC or its nominee, unless one of the following occurs:

| • |     | DTC notifies us that it is unwilling or unable to continue acting as the depositary for the global note of that                                   
 series or DTC has ceased to be a clearing agency registered under the Exchange Act, and in either case we fail to appoint a successor depositary; |

| • |     | subject to the arrangements then existing between us and DTC, we elect in our sole discretion not to have the 
 notes of that series represented by a global note; or                                                         |

| • |     | an event of default with respect to the notes of that series has occurred and is continuing, and DTC requests the 
 issuance of certificated notes.                                                                                   |

In those circumstances, DTC will determine the persons in whose names any notes issued in exchange for the global note will be registered, and we will issue certificated notes to those persons upon surrender by DTC of the global note. Neither we nor the trustee will be liable for any delay by DTC, its nominee or any direct or indirect participant in identifying the beneficial owners of a global note. We and the trustee may conclusively rely on, and will be protected in relying on, instructions from DTC or its nominee for all purposes, including with respect to the registration and delivery, and the respective principal amounts, of the certificated notes to be issued. Holders of certificated notes, if so issued, can transfer or exchange their notes, duly endorsed or accompanied by a written instrument of transfer satisfactory to us and the security registrar, without service charge, upon reimbursement of any taxes or government charges, at the trustee’s corporate trust office or at any other office we maintain for those purposes. S-18

Material U.S. federal income tax considerations The following is a summary of the material U.S. federal income tax considerations relating to the purchase, ownership and disposition of the notes, but does not purport to be a complete analysis of all potential tax considerations. This summary is based on the provisions of the U.S. Internal Revenue Code of 1986, as amended, which we refer to as the Code, the regulations the Department of Treasury has promulgated under the Code, which we refer to as Treasury regulations, judicial authority, published administrative positions of the U.S