6760-01-327-7224 (6239309-4)
NSN 6760-01-327-7224 (NIIN 01-327-7224) 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 6239309-4 (Raytheon Company, CAGE 82577); also referenced as 149 7346, WRATTEN NEUTRAL DENSITY FILTER (Eastman Kodak Co); EK1497346 (Tiffen Manufacturing Corp).
Key specs: 0.500 density; 32 light transmission in percent; full characteristics table below. NIIN assigned October 1990; DEMIL A (none required); unit of issue EA (each), $67.08 gov standard price.