Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KJN07C013-140 found under Bearing Sleeve by Dover Engineered Systems Inc. The National Stock Number assigned to this part is 3120004433769, 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 KJN07C013-140.