Thank you for selecting Aerospace Aviation 360 for S39-RO by Nkk Switches Inc under Electromechanical Switches. We are proud to be an ASAP Semiconductor owned and operated website, a leading distributor of aviation and aerospace part numbers like S39-RO. To help us better understand your parts requirements, please fill out an RFQ form for part number S39-RO with your details, and our customer executive will respond to your RFQ in 15 minutes or less.