Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28197 found under Coalescing Filter Carbon Cartrid by Justrite Mfg Co. The National Stock Number assigned to this part is 9330013986792, and the Federal Supply Class is 9330 Plastics Fabricated Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 28197.