Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S88-5122ISSUE10 found under Retainer Electron T by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5960002849751, 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 S88-5122ISSUE10.