Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4 8V 50BL found under Battery Storage by Saft America Inc. The National Stock Number assigned to this part is 6140011197662, 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 4 8V 50BL.