Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3428022 found under Insulation Hood Insulator by Soundcoat Company Inc The. The National Stock Number assigned to this part is 5970015087542, 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 3428022.