Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WJ3090 found under Amplifier Radio Frequency by Watkins Johnson Co. The National Stock Number assigned to this part is 5960000011581, and the Federal Supply Class is 5960 Electron Tubes And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WJ3090.