Scratch resistant
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 6685-01-316-8780
NSN 6130-01-369-4227
NSN 5930-00-910-5326
NSN 5855-01-484-3619
NSN 5835-01-286-6499
NSN 5925-01-347-5024
NSN 5910-00-825-4340
NSN 2925-01-385-1763
NSN 5999-00-557-3659
NSN 5835-00-484-1529
NSN 5855-00-869-3635
NSN 5910-01-388-1146