Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 529-0000052 found under by A T And T Global Information. The National Stock Number assigned to this part is 6140014219994, 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 529-0000052.