Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 478 1028-002 found under Washer Flat by Reidville Hydraulics And Mfg Inc. The National Stock Number assigned to this part is 5310011976422, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 478 1028-002.