Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8-1-2-11C0PYFAX found under by American Unifax Inc. The National Stock Number assigned to this part is 7530003400747, 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 8-1-2-11C0PYFAX.