Coated one side only
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 4140-01-183-4140
NSN 6220-01-468-5243
NSN 5905-00-779-8172
NSN 5990-01-233-8138
NSN 5905-01-454-0664
NSN 6240-00-170-5302
NSN 6220-00-350-2294
NSN 5950-00-505-0295
NSN 5996-01-259-7416
NSN 5945-01-655-1508
NSN 6135-00-856-1343
NSN 5925-01-236-6722