Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DSRP5-FS428 found under Bearing Roller Airframe by Timken Company The. The National Stock Number assigned to this part is 3110002710009, 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 DSRP5-FS428.