Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C19-0003 found under Insulator Mylar by Andrea Systems Llc. The National Stock Number assigned to this part is 5970003508514, 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 C19-0003.