Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FBC1615B-11 found under Impeller And Motor Assembly by Kemtron Electron Products Inc. The National Stock Number assigned to this part is 4140003927235, 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 FBC1615B-11.