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 6320-01-125-3361
NSN 5960-01-304-7178
NSN 5855-01-195-2518
NSN 5915-01-455-9868
NSN 5990-01-425-2175
NSN 4140-01-364-9797
NSN 5950-00-465-4931
NSN 5855-00-185-1560
NSN 6110-01-451-4326
NSN 6685-00-196-0304
NSN 6620-01-512-2016
NSN 6685-01-547-0702