Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 400GRAINSIZEALUMINUM0XIDE found under Grain Abrasive by Cesiwid Inc. The National Stock Number assigned to this part is 5350008994664, and the Federal Supply Class is 5350 Abrasive Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 400GRAINSIZEALUMINUM0XIDE.