Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BT70083 found under Battery Nonrechargeable by Bren Tronics Inc. The National Stock Number assigned to this part is 6135014128929, 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 BT70083.