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 5935-00-775-5987
NSN 6145-01-607-6165
NSN 5999-00-593-6535
NSN 5996-00-101-0687
NSN 2925-01-357-2512
NSN 5910-01-579-6633
NSN 5985-00-086-0354
NSN 6240-01-278-9825
NSN 5925-01-115-0209
NSN 5935-00-809-7090
NSN 5915-00-242-3744
NSN 6150-01-503-0785