Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 042 8309 090724 found under Insulation Sleeving by Te Ka De Felten. The National Stock Number assigned to this part is 5970121584568, 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 042 8309 090724.