Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BPF-101991 found under Filter Band Pass by Oeco Corporation. The National Stock Number assigned to this part is 5915000606249, 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 BPF-101991.