Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20039M510D REV C ITEM 20 found under Bearing Roller Need by Bw Elliott Manufacturing Co Llc. The National Stock Number assigned to this part is 3110016299794, 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 20039M510D REV C ITEM 20.