Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 528-0393-005 found under Amplifier Radio Fre by Cardwell Condenser Corp. The National Stock Number assigned to this part is 5996007635947, 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 528-0393-005.