6760-01-336-1647 (6413 1496413)
NSN 6760-01-336-1647 (NIIN 01-336-1647) is a neutral density filter in Federal Supply Class 6760, Photographic Equipment And Accessories — a light filter which reduces the intensity of the light without changing the relative spectral distribution of the energy. Manufacturer part number 6413 1496413; also referenced as 149 6413 (Eastman Kodak Co).
Key specs: 2 density; 1 light transmission in percent; full characteristics table below. NIIN assigned March 1991; DEMIL A (none required).