Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0857441 found under Insulator Plate by Ant Company Of Va The. The National Stock Number assigned to this part is 5970001447580, 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 0857441.