Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KS 12001 found under Bearing Sleeve by Wartsila Diesel Inc. The National Stock Number assigned to this part is 3120014432262, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KS 12001.