Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F4809A found under Battery Nonrecharge by Hewlett Packard Co. The National Stock Number assigned to this part is 6135015476822, and the Federal Supply Class is 6135 Batteries Nonrechargeable. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F4809A.