Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WK-871-141 REV 1 PC 1 found under Switch Proximity by Walz And Krenzer Inc. The National Stock Number assigned to this part is 5930016220335, 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 WK-871-141 REV 1 PC 1.