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 5915-01-579-2093
NSN 5950-00-833-1161
NSN 2925-00-136-2612
NSN 5975-01-202-0191
NSN 6685-00-342-9408
NSN 5925-00-811-8705
NSN 5905-01-147-4876
NSN 5998-01-500-2651
NSN 6110-01-597-5772
NSN 5990-01-574-2522
NSN 5996-01-180-5834
NSN 5895-01-649-9177