Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A0A3924 found under Fan Tubeaxial by Rotron Incorporated. The National Stock Number assigned to this part is 4140000186533, 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 A0A3924.