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 5835-00-221-6628
NSN 6620-01-431-9176
NSN 6620-01-422-3522
NSN 6220-01-023-8818
NSN 5835-00-946-2656
NSN 6620-00-220-2157
NSN 6240-01-264-2574
NSN 4140-00-822-4447
NSN 5998-01-620-1261
NSN 5930-00-310-1759
NSN 6650-00-765-3239
NSN 6650-01-425-1600