Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FHD-104A found under Filter High Pass by Metropole Products Inc. The National Stock Number assigned to this part is 5915015309422, 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 FHD-104A.