Company: NOC
Filing Date: 2025-05-28
Form Type: 424B5
Source: 0001193125-25-129530
Chunk: 12

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-28
Form: 424B5
Chunk 12
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us, to which we refer you. This description of the notes is only a summary and may not include all the information that is important to you. You should read the indenture we refer to below and the notes for more details regarding our obligations and your rights with respect to the notes.

For purposes of this section entitled “Description of notes,” references to “we,” “our,” “us” or similar references are to Northrop Grumman only, and not to any of its subsidiaries.

General

We will issue our 4.650% Senior Notes due 2030
(the “2030 notes”) and 5.250% Senior Notes due 2035 (the “2035 notes”) under the indenture, dated as of November 21, 2001 (the “base indenture”), by and between Northrop Grumman and The Bank of New York Mellon, as
successor to JPMorgan Chase Bank, as trustee, as supplemented by the first supplemental indenture, dated as of July 30, 2009, the third supplemental indenture dated as of March 30, 2011, the fourth supplemental indenture, dated as of
March 30, 2011, and a thirteenth supplemental indenture to be entered into between Northrop Grumman and the trustee (the supplemental indentures, together with the base indenture, the “indenture”).

The notes will be issued in two separate series of securities under the indenture in an initial aggregate principal amount of $1,000,000,000, consisting of an
initial aggregate principal amount of $500,000,000 of the 2030 notes and an initial aggregate principal amount of $500,000,000 of the 2035 notes.

Payment
of the full principal amount of the 2030 notes will be due on July 15, 2030, and payment of the full principal amount of the 2035 notes will be due on July 15, 2035, in each case unless the notes are redeemed in whole or in part as described below
under “—Optional redemption.”

The 2030 notes will bear interest at the rate of 4.650% per annum, and the 2035 notes will bear
interest at the rate of 5.250% per annum. We will pay interest on the 2030 notes and the 2035 notes semi-annually in arrears on January 15 and July 15 of each year,