Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M12B6 found under Batterystorage by Milwaukee Tool And Equipment Company. The National Stock Number assigned to this part is 6140016771016, 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 M12B6.