Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S12 35 6019 found under Liner Tail Gear Box by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 1560003360159, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S12 35 6019.