Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS4093DU09 found under Bearing Washer Thrust by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 3120011251298, 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 SS4093DU09.