Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C91-48631 found under Inserter And Remover Bearing And by Brunswick Corporation. The National Stock Number assigned to this part is 5120001768317, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C91-48631.