Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57 055 3 found under Rectifier by Eaton Corporation. The National Stock Number assigned to this part is 6130009489422, 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 57 055 3.