Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 542 16 63-59 found under Indicator Temperature Synchro by United Rentals North America Inc. The National Stock Number assigned to this part is 6685015549209, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 542 16 63-59.