Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GK3LB-P09 found under Filter Radio Frequency Interfere by Mepco Centralab Inc. The National Stock Number assigned to this part is 5915011389662, 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 GK3LB-P09.