Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FN353Z-30-33 found under Filter Radio Freque by Digi Key Corporation Dba Digi Key Electronics. The National Stock Number assigned to this part is 5915016263538, 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 FN353Z-30-33.