Company: NOC
Filing Date: 2025-05-28
Form Type: 424B5
Source: 0001193125-25-129530
Chunk: 39

Company: NORTHROP GRUMMAN CORP /DE/
Filing Date: 2025-05-28
Form: 424B5
Chunk 39
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 purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or
territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI
33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this
offering.

S-27

Validity of the notes

Cravath, Swaine & Moore LLP, New York, New York will issue an opinion about the validity of the notes for us. The validity of the notes offered
hereby is being passed upon for the underwriters by Simpson Thacher
& Bartlett LLP, New York, New York.

Experts

The consolidated financial statements of Northrop Grumman Corporation and subsidiaries (the “Company”) as of December 31, 2024 and 2023, and
for each of the three years in the period ended December 31, 2024, incorporated by reference in this Prospectus, and the effectiveness of the Company’s internal control over financial reporting, have been audited by Deloitte &
Touche LLP, an independent registered public accounting firm, as stated in their reports. Such financial statements are incorporated by reference in reliance upon the reports of such firm given their authority as experts in accounting and auditing.

With respect to the unaudited interim financial information for the periods ended March 31, 2025 and 2024, which is incorporated by reference
herein, Deloitte & Touche LLP, an independent registered public accounting firm, has applied limited procedures in accordance with the standards of the Public Company Accounting Oversight Board (United States) for a review of such
information. However, as stated in their report included in the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2025 and incorporated by reference herein, they did not audit
and they do not express an opinion on that interim financial information. Accordingly, the degree of reliance on their report on such information should be restricted in light of the limited nature of the review procedures applied.
Deloitte & Touche LLP is not subject to the liability provisions of Section 11 of the Securities Act for their reports on the unaudited interim financial information because those reports are not “reports” or a
“