Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3859X found under Cover Assembly Shif by Parker Hannifin Ltd. The National Stock Number assigned to this part is 2520008912074, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3859X.