Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KP529C found under Fan Centrifugal by Kooltronic Inc. The National Stock Number assigned to this part is 4140001264594, 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 KP529C.