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 5998-00-833-5510
NSN 6105-00-853-8662
NSN 6320-01-330-4634
NSN 5990-01-645-2592
NSN 6620-00-189-9444
NSN 5920-01-283-0214
NSN 5920-01-066-3709
NSN 5910-00-735-7883
NSN 5930-00-255-4173
NSN 5920-01-610-7598
NSN 5855-01-352-7033
NSN 5835-01-291-5405