Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AM500 found under by Oil Filter Co Inc. The National Stock Number assigned to this part is 4330011961394, and the Federal Supply Class is 4330 Centrifugals Separators And Pressure And Vacuum Filters. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AM500.