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 5920-01-224-6530
NSN 6645-00-527-6531
NSN 6240-01-063-7685
NSN 5935-00-125-2449
NSN 4140-00-931-9638
NSN 6320-00-228-5678
NSN 5985-01-338-8574
NSN 5965-01-284-0124
NSN 6685-01-381-7207
NSN 6110-01-394-6324
NSN 5985-00-232-4916
NSN 5935-01-330-1781