Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 542 20 64-17 found under Lamp Light Emitting Diode by United Rentals North America Inc. The National Stock Number assigned to this part is 6220016230048, and the Federal Supply Class is 6220 Electric Vehicular Lights And Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 542 20 64-17.