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 5990-00-876-7893
NSN 5925-01-160-7609
NSN 6645-01-034-0469
NSN 4140-00-499-8330
NSN 5925-01-481-3442
NSN 6650-01-618-2285
NSN 2925-00-945-0792
NSN 6220-00-458-2160
NSN 2925-01-254-3068
NSN 4140-01-528-7945
NSN 6150-00-973-2152
NSN 5998-01-306-8387