Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A77-175 found under In Line Filter by Rix Industries. The National Stock Number assigned to this part is 4330014778740, 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 A77-175.