Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L21496P03 found under Insulator Nozzle by Thermal Structures Inc. The National Stock Number assigned to this part is 5970010157385, 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 L21496P03.