Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EL7518B2 found under Filter Element Fluid by United Air Filter Company. The National Stock Number assigned to this part is 2940001074197, 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 EL7518B2.