Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KX 03-5 found under Insulator Plate by A P X Plastics Inc. The National Stock Number assigned to this part is 5970003577786, and the Federal Supply Class is 5970 Electrical Insulators And Insulating Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KX 03-5.