Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D1-023994 ITEM 26 found under Bearing Ball Annular by Western Sky Industries Inc. The National Stock Number assigned to this part is 3110013538854, 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 D1-023994 ITEM 26.