Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM-C-321424 found under Bearing Multiple by Starwin Industries Inc. The National Stock Number assigned to this part is 3110006528950, 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 SM-C-321424.