EXHIBIT 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement (Form S-8 No. 33-43703) pertaining to the Sparton Corporation 1989 Stock Option Plan and in the Registration Statement (Form S-8 No. 333-46804) pertaining to the Amended and Restated Sparton Corporation Stock Incentive Plan of our report dated August 25, 2006, relating to the consolidated financial statements and schedule of Sparton Corporation and subsidiaries, which appears in this Form 10-K.

By /s/ BDO Seidman, LLP

Grand Rapids, Michigan
September 13, 2006

Sparton Corporation 2006 Annual Report 56