Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3579540 02 404 ITEM 20 found under Plate Retaining Cou by Holset Engineering Co Ltd. The National Stock Number assigned to this part is 3010993501815, 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 3579540 02 404 ITEM 20.