Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AW9013PC31 found under Bearing Sleeve by Markey Machinery Co Inc. The National Stock Number assigned to this part is 3120002877723, 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 AW9013PC31.