Exhibit 99.6



May 11, 2006



Sent via electronic mail and overnight mail



U.S. Securities and Exchange Commission

Office of the Chief Accountant

100 F Street, NE

Washington, DC 20549



|Re: | National Presto Industries, Inc.
File No. 1-2451
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Dear Sir or Madam:



We have read Item 4.01 of Form 8-K of National Presto Industries, Inc.,filed April 28, 2006.  With respect to the statements made in that item, we note the following:



| |  | We have no basis to comment as to what is meant by the Company as to after business hours in paragraph 1). We note that our Firms resignation letter was electronically transmitted at 4:41 p.m. Central Time on April 25th and was also sent via overnight mail in hardcopy  to the companys audit committee chairman, the board chair and chief executive officer, and the companys chief financial officer.  We agree that we provided an accountants report under Section 10A with that resignation letter.
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| |  | We agree with the statement in paragraph 2) that we provided a letter, dated April 12, 2006, to the company that our opinions included in the Companys 2005 Annual Report on Form 10-K could no longer be relied upon but note that those opinions previously issued related to the companys financial statements as of and for the three years ended December 31, 2005 and the companys internal control over financial reporting as of December 31, 2005.
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| |  | We have no basis to agree or disagree with the first sentence in paragraph 3) as we are not clear what is meant by the statement in that sentence referring to the situation described in 2). We do call attention to our letter dated April 21, 2006, addressed to the companys audit committee chairman, the board chair and chief executive officer, and the chief financial officer outlining our disagreements with statements the company made in its Form 8-K filed April 19, 2006.  Such letter was filed as Exhibit 99.12 to the companys Form 8-K/A filed on April 25, 2006.  We also call attention to our accountants report under Section 10A in which we concluded that the Company failed to take timely and appropriate remedial action in response to the Securities and Exchange Commission staffs conclusion that the Companys Form 10-K filing
was materially inaccurate and misleading to investors.  That report was filed as Exhibit 99.3 to the Companys Form 8-K filed April 28, 2006.
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Very truly yours,



/s/ GRANT THORNTON LLP











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