Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31-0001-03 found under Switch Slide by Aeroflex Wichita Inc. The National Stock Number assigned to this part is 5930013957010, 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 31-0001-03.