SCHAUMBURG, Ill.--(BUSINESS WIRE)--Sparton Corporation (NYSE:SPA) today announced results for the third quarter of fiscal 2015 ended March 31, 2015. The Company reported third quarter sales of $93.1 million, an increase of 11%, from $84.0 million for the third quarter of fiscal 2014. Operating income for the third quarter of fiscal 2015 was $4.9 million compared to $6.4 million in the third quarter of fiscal 2014. Net income for the third quarter of fiscal 2015 was $4.1 million ($3.2 million ad