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 5975-01-257-6738
NSN 5965-00-175-5664
NSN 5996-01-208-5045
NSN 5905-00-203-2182
NSN 5855-01-073-1841
NSN 5945-00-456-1758
NSN 7035-00-946-2642
NSN 5960-01-094-5958
NSN 2925-01-294-4125
NSN 6320-01-643-0850
NSN 5910-00-423-4834
NSN 6650-01-428-9958