Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5-39351-66 found under Wire Rope Assembly Single Leg Av by American Valley Aviation Inc. The National Stock Number assigned to this part is 1640015515625, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5-39351-66.