Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R2 1-2PT found under Insulation Resin by Epoxylite Corp The. The National Stock Number assigned to this part is 5970004147137, 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 R2 1-2PT.