Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RPH31326 found under Coupling Engine by Coltec Industries Inc. The National Stock Number assigned to this part is 3010005381789, 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 RPH31326.