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 5985-00-689-8901
NSN 5935-00-038-8299
NSN 5935-01-138-5622
NSN 5996-01-281-7336
NSN 5915-01-491-6280
NSN 5905-01-205-2672
NSN 5895-00-755-4647
NSN 6150-01-167-8023
NSN 5905-01-053-0259
NSN 6110-00-934-7943
NSN 5905-01-165-5816
NSN 7035-00-763-6180