Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HZ8640A20KNTB3TY258 found under Filter Assembly Fluid by Pall Industrial Hydraulics Corp. The National Stock Number assigned to this part is 2940014369579, and the Federal Supply Class is 2940 Engine Air And Oil Filters Strainers And Cleaners Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HZ8640A20KNTB3TY258.