Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-WK-756-23LC1 found under Switch Box by Walz And Krenzer Inc. The National Stock Number assigned to this part is 5930013789712, 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 B-WK-756-23LC1.