Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 418C found under Ring Cam Winch Hydr by Dudco Products Co. The National Stock Number assigned to this part is 2520006925592, 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 418C.