Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SERIES 3550A MODEL 4030 found under Power Supply by Power Ten. The National Stock Number assigned to this part is 6130009286771, 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 SERIES 3550A MODEL 4030.