Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1159FP20007 11 found under Insulator Pitot Tub by Gulfstream Aerospace Corp. The National Stock Number assigned to this part is 5970012593260, 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 1159FP20007 11.