Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PENNTUBE V FLEXIBLE 4IN YELLOW found under Insulation Sleeving by Saint Gobain Performance Plastics. The National Stock Number assigned to this part is 5970008106132, 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 PENNTUBE V FLEXIBLE 4IN YELLOW.