Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ETC8D122-2 found under Filter Radio Freque by Alion Science And Technology. The National Stock Number assigned to this part is 5915016461058, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ETC8D122-2.