Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C5S3Q-1 found under Fan Centrifugal by Ashland Electric Products Inc. The National Stock Number assigned to this part is 4140000097453, and the Federal Supply Class is 4140 Fans Air Circulators And Blower Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C5S3Q-1.