Surface coated with reflection-reducing film
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: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass
NSN 6685-01-612-0511
NSN 6220-01-254-7921
NSN 5835-00-406-5014
NSN 5930-00-733-5273
NSN 5905-01-553-7180
NSN 6110-01-651-2629
NSN 6645-01-333-7497
NSN 5945-01-441-8545
NSN 5930-01-085-6257
NSN 6145-01-520-3631
NSN 5945-01-423-1009
NSN 2925-00-406-4381