Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AFO 0404 4021 495 found under Amplifier Intermediate Frequency by Ctt Inc. The National Stock Number assigned to this part is 5996014121396, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AFO 0404 4021 495.