Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RC20-9X9 found under Ventilator Air Circulating by Aeronca Inc. The National Stock Number assigned to this part is 5640011008218, and the Federal Supply Class is 5640 Wallboard Building Paper And Thermal Insulation Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RC20-9X9.