Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E3R28-115-17R2 found under Power Supply by Cooper Industries Inc. The National Stock Number assigned to this part is 6130008676161, 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 E3R28-115-17R2.