Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 140-009C16T56 found under Washer Flat by F P A Manufacturing. The National Stock Number assigned to this part is 5310001816411, 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 140-009C16T56.