Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 290-1234P1 found under Electron Tube by Raytheon Company. The National Stock Number assigned to this part is 5960002620151, 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 290-1234P1.