Exhibit 15 November 10, 1994 Securities and Exchange Commission 450 Fifth Street, NW Washington, DC 20549 Re: SPS Technologies, Inc. Registration on Form S-8 Gentlemen: We are aware that our report dated May 12, 1994, except for the third paragraph of Note 3 as to which the date is November 9, 1994, on our review of interim financial information of SPS Technologies, Inc. and Subsidiaries for the three-month periods ended March 31, 1994 and 1993 and included in the Company's quarterly report on Form 10-Q/A-1 for the quarter ended March 31, 1994 is incorporated by reference in the Company's Registration Statement on Form S-8 dated August 16, 1988 (Registration No. 33-23778) and Post Effective Amendments to the Registration Statement on Form S-8 (Registration Nos. 2-64082, 2- 90908 and 33-51827). Pursuant to Rule 436(c) under the Securities Act of 1933, this report should not be considered a part of the registration statement prepared or certified by us within the meaning of Sections 7 and 11 of that Act. /s/Coopers & Lybrand Coopers & Lybrand L.L.P.