Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H306508-3 found under Battery Assembly by Raytheon Company. The National Stock Number assigned to this part is 6135015273302, 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 H306508-3.