Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC9646 found under Shaft Shouldered by Diamond Reo Truck Co. The National Stock Number assigned to this part is 3040003180978, 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 KC9646.