Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 255-012-335 found under Coupling Shaft Rigid by Warren Rupp Houdaille Inc. The National Stock Number assigned to this part is 3010015650838, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 255-012-335.