Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 499682 found under Nut Plain Extended Washer Double by Ssanford Tool And Design Inc. The National Stock Number assigned to this part is 5310009229014, 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 499682.