Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LL40 found under Hose Air Cleaner by Wisconsin Motors Llc. The National Stock Number assigned to this part is 4720005679384, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LL40.