Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 70K8566 found under Fan Tubeaxial by Farnell Newark Electronics Component. The National Stock Number assigned to this part is 4140010554705, 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 70K8566.