Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8 1 2 X 11IN 4 PART found under Paper Teletypewriter Continuous Flat Fold by Superintendent Of Documents. The National Stock Number assigned to this part is 7530010472645, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8 1 2 X 11IN 4 PART.