Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GO5581-1260A4 found under Insulator Plate by M L Aviation Ltd. The National Stock Number assigned to this part is 5970012674680, 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 GO5581-1260A4.