Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3CX3000A7 found under Electron Tube by Varian Associates Inc. The National Stock Number assigned to this part is 5960010357496, 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 3CX3000A7.