Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D04-1 found under by Asheville Schoonmaker Mica Co L P. The National Stock Number assigned to this part is 5970001434072, 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 D04-1.