Corners slightly rounded
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 6105-01-386-1529
NSN 5895-00-308-0285
NSN 4140-01-528-8364
NSN 5975-00-571-4143
NSN 6135-00-900-2139
NSN 5945-01-234-8056
NSN 6645-01-318-1874
NSN 2925-00-839-6815
NSN 5950-01-503-0747
NSN 5835-01-460-6054
NSN 6320-00-636-0922
NSN 5835-00-224-9148