Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M22520 3 1 found under Gage Plug Plain Cylindrical by Itt Cannon. The National Stock Number assigned to this part is 5220000906722, and the Federal Supply Class is 5220 Inspection Gages And Precision Layout Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M22520 3 1.