Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GE-04-MA found under Amplifier Radio Fre by Espey Mfg And Electronics Corp. The National Stock Number assigned to this part is 5996014847384, 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 GE-04-MA.