Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS507-15 found under Insulation Sleeving by Ellis And Watts International Llc. The National Stock Number assigned to this part is 5970012808648, 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 SS507-15.