Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y028 788 01 found under Washer by Paccar Parts Uk Limited. The National Stock Number assigned to this part is 5310011089860, 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 Y028 788 01.