Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GUA FAN 10011 found under Guard Fan Impeller by The Entwistle Company. The National Stock Number assigned to this part is 4140013625292, 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 GUA FAN 10011.