Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NATVAR 261 found under Insulation Sleeving by High Voltage Components Inc. The National Stock Number assigned to this part is 5970008108860, 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 NATVAR 261.