Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W623ZZ found under Bearing Ball Annular by Crouzet Corp. The National Stock Number assigned to this part is 3110013568925, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W623ZZ.