Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F4SPT000 found under Electrode Resistance Heating Wel by Wichitech Industries Inc. The National Stock Number assigned to this part is 3432016253325, and the Federal Supply Class is 3432 Electric Resistance Welding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F4SPT000.