Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AU40488 found under Retainer And Ball Valve by Deere And Company. The National Stock Number assigned to this part is 4820012380208, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AU40488.