Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KTD-4003G found under Switch Thermostatic by Prestolite. The National Stock Number assigned to this part is 5930013686736, 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 KTD-4003G.