Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2DU-9 found under Battery Storage by C And D Batteries. The National Stock Number assigned to this part is 6140002564218, and the Federal Supply Class is 6140 Batteries Rechargeable. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2DU-9.