Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9310C5501-001 found under Head Fluid Filter by The Entwistle Company. The National Stock Number assigned to this part is 4330014510072, 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 9310C5501-001.