Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9-00000409 found under Washer Lock by Ibis Tek Llc. The National Stock Number assigned to this part is 5310015333170, 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 9-00000409.