Protective covering material 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 5945-01-462-1555
NSN 6645-01-500-0827
NSN 5975-01-038-8707
NSN 7035-00-252-7467
NSN 6645-01-206-4888
NSN 6685-01-658-7078
NSN 7035-01-432-4605
NSN 6620-00-428-9866
NSN 5985-01-417-0116
NSN 5910-00-398-0775
NSN 5905-01-168-1726
NSN 6145-01-575-6447