Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS67-8220 FIGURE 3 found under Washer Flat by Sabbamerica East Inc. The National Stock Number assigned to this part is 5310012971167, 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 MS67-8220 FIGURE 3.