Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NA55D68R1F found under Resistor Fixed Film by Corning Glass Works. The National Stock Number assigned to this part is 5905007213733, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NA55D68R1F.