Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12712 3533 found under Battery Power Suppl by Optics 1 Inc. The National Stock Number assigned to this part is 6130016062126, and the Federal Supply Class is 6130 Converters Electrical Non Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12712 3533.