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 6150-00-516-8445
NSN 5835-01-461-8184
NSN 5920-01-581-2171
NSN 5985-00-508-7162
NSN 5925-01-424-5330
NSN 5998-01-384-1213
NSN 6240-00-227-0135
NSN 5935-01-435-7593
NSN 5935-01-576-9971
NSN 6110-01-506-6460
NSN 5975-01-515-9483
NSN 5960-01-151-4518