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 6620-01-656-1896
NSN 5835-01-041-0585
NSN 6685-01-158-9427
NSN 6150-00-391-1981
NSN 5930-00-548-0746
NSN 6145-01-289-7863
NSN 6240-00-095-3915
NSN 5960-01-392-5993
NSN 5990-01-322-9781
NSN 6685-01-497-8732
NSN 5998-01-553-5549
NSN 5905-01-381-0638