Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MN9004 FIG.8-1 INDEX NO.40 found under Filter Trap by Gse Holdings Inc. The National Stock Number assigned to this part is 5915014616999, 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 MN9004 FIG.8-1 INDEX NO.40.