Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EM 7843 44 found under Filter Assembly Ele by Electrometrics. The National Stock Number assigned to this part is 5915014567857, 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 EM 7843 44.