Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 542 17 87-24 found under Switch Pressure by United Rentals North America Inc. The National Stock Number assigned to this part is 5930015547763, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 542 17 87-24.