Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58415-31 found under Tube Torque Flap Dr by Heligear Acquisition Co. The National Stock Number assigned to this part is 4710008687160, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 58415-31.