Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21C2222-258 found under Filter Fluid by Janke And Company Inc. The National Stock Number assigned to this part is 4330000101679, 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 21C2222-258.