Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 616228 found under Contact Positioner Terminal Crim by Astro Tool Corp. The National Stock Number assigned to this part is 5120000176419, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 616228.