Protective covering material on both sides
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5999-01-372-1182
NSN 5915-01-657-8735
NSN 6645-00-285-8781
NSN 4140-01-418-7534
NSN 6135-01-609-6476
NSN 5999-01-145-5084
NSN 5910-01-443-5198
NSN 5920-00-716-9838
NSN 6130-00-635-9853
NSN 5950-01-083-1832
NSN 6130-00-585-9448
NSN 5935-01-069-3168