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 6320-01-052-2118
NSN 5910-01-397-4997
NSN 6650-01-422-1037
NSN 6145-00-099-8986
NSN 5975-00-815-2160
NSN 6105-00-484-5106
NSN 6240-00-201-1200
NSN 6620-01-525-8648
NSN 6150-00-257-5027
NSN 6110-00-932-5257
NSN 5996-00-316-5115
NSN 5910-01-633-9963