Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 100742-1 found under Plate Assy Clutch by Watson H S Co. The National Stock Number assigned to this part is 2520000016148, 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 100742-1.