Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L541B52K090 found under Cap Air Cleaner Intake Pipe by Greenlees Filter Llc. The National Stock Number assigned to this part is 2940015625774, 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 L541B52K090.