1st and 2nd corner radii 1.890 in., remaining corners sq
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 5960-00-597-2680
NSN 5975-00-141-8513
NSN 5905-01-534-7894
NSN 5895-01-593-6306
NSN 5965-01-192-1366
NSN 5915-01-650-8515
NSN 6150-01-132-7828
NSN 6620-00-461-4934
NSN 5930-01-382-4926
NSN 6110-01-225-3207
NSN 5855-01-364-9810
NSN 5990-01-224-8052