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 5935-01-145-1757
NSN 6220-00-109-6672
NSN 5990-01-655-1437
NSN 5905-01-446-0196
NSN 6110-01-066-6657
NSN 6610-01-384-1587
NSN 5998-00-456-8874
NSN 6105-00-809-4356
NSN 5855-01-423-0817
NSN 5960-00-405-8369
NSN 5960-01-083-3936
NSN 6130-01-137-1388