Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A2220 found under Washer Spring Tensi by Am General Llc. The National Stock Number assigned to this part is 5310007324848, 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 A2220.