Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5138984 found under Bearing Half Washer Thrust by Detroit Diesel Corporation. The National Stock Number assigned to this part is 3120010940599, 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 5138984.