Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A9813 found under Coil Radio Frequency by Aeronautical Communications. The National Stock Number assigned to this part is 5950009022375, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A9813.