Scratch resistant
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 6650-00-555-1061
NSN 5985-01-322-9168
NSN 5895-00-241-0214
NSN 5835-01-580-7543
NSN 5945-01-242-3913
NSN 5996-00-465-6263
NSN 4140-01-057-0968
NSN 5965-00-841-7530
NSN 6150-00-834-6804
NSN 5935-01-277-1340
NSN 5950-01-601-4026
NSN 5998-00-927-2594