Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 221-2227 found under Disk Abrasive by Rs Components Sas. The National Stock Number assigned to this part is 5345016262337, and the Federal Supply Class is 5345 Disks And Stones Abrasive. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 221-2227.