Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FL40-4 found under Bearing Sleeve by Eagle Picher Technologies Llc. The National Stock Number assigned to this part is 3120010718808, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FL40-4.