Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 600565 found under Washer Spring Tensi by Alvis Inc. The National Stock Number assigned to this part is 5310121368600, 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 600565.