Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13207E1839 1 found under Shaft Curb Torsion by Cecom Lr Center. The National Stock Number assigned to this part is 3040000084789, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 13207E1839 1.