Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2SM-4.0-00 found under Filter Band Pass by Reactelinc. The National Stock Number assigned to this part is 5915014854585, 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 2SM-4.0-00.