Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IP 60999 found under Insulator Disk by Advanced Technical Corporation. The National Stock Number assigned to this part is 5970007591874, 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 IP 60999.