Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BT-70939AP found under Battery Storage by Bren Tronics Inc. The National Stock Number assigned to this part is 6140016515047, 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 BT-70939AP.