Heat and weathering resistant, anti-reflection coated 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 5985-00-110-1814
NSN 5895-00-957-7029
NSN 7035-01-121-0901
NSN 6150-00-152-3947
NSN 6150-00-248-3866
NSN 5905-00-932-1237
NSN 5965-00-539-7328
NSN 7035-00-108-4421
NSN 6650-01-437-2570
NSN 7035-00-163-6221
NSN 5910-01-118-9610
NSN 5999-01-612-3735