45.0 degrees by 0.047 in deep chamfer on edge of both sides
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 5960-01-437-1315
NSN 5999-01-181-6054
NSN 7035-01-323-8262
NSN 5895-00-125-5465
NSN 4140-01-370-4075
NSN 6150-01-615-0642
NSN 5975-00-337-0448
NSN 6150-00-907-0651
NSN 5998-00-134-3279
NSN 6645-01-101-3696
NSN 5990-01-586-8202
NSN 6220-01-430-7021