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 5910-01-399-0255
NSN 7035-00-470-4977
NSN 6145-01-152-2417
NSN 4140-01-463-1331
NSN 6105-00-171-6521
NSN 5998-01-449-1398
NSN 5930-01-316-9000
NSN 5935-01-566-4880
NSN 6650-00-210-4399
NSN 6220-00-476-6031
NSN 6130-01-381-0966
NSN 7035-01-196-3445