Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 300 54 6715 found under Amplifier Subassembly by L 3 Communications Microdyne. The National Stock Number assigned to this part is 5996011558262, 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 300 54 6715.