Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 403871-104 found under Bearing Drive Gear by The Oilgear Company. The National Stock Number assigned to this part is 3110009614461, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 403871-104.