Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EATON 3S 550 found under Power Supply Uninte by Eaton Power Quality Ltd. The National Stock Number assigned to this part is 6130016008254, 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 EATON 3S 550.