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 5985-01-278-0493
NSN 5925-01-327-5728
NSN 6135-00-593-6831
NSN 6610-01-064-3507
NSN 2925-00-486-0524
NSN 5965-01-618-6288
NSN 6130-01-092-8988
NSN 6650-01-310-2525
NSN 5950-01-324-8642
NSN 6610-00-329-3534
NSN 5960-01-424-0590
NSN 6130-01-183-5259