Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 339028 found under Torque Tube Gear Door by Gerhardts Inc. The National Stock Number assigned to this part is 1560003063530, 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 339028.