Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 522-6388-004REVM found under Amplifier Intermedi by Alcatel Usa Inc. The National Stock Number assigned to this part is 5996008990486, 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 522-6388-004REVM.