Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31 0002 found under Housing Bearing Unit by H O Bostrom Company Inc. The National Stock Number assigned to this part is 3130016234024, and the Federal Supply Class is 3130 Bearings Mounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31 0002.