Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ACI-9900-153 found under Filter High Pass by Spectrum Microwave Inc. The National Stock Number assigned to this part is 5915016537238, 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 ACI-9900-153.