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 4140-01-431-9065
NSN 6150-01-320-2852
NSN 5935-00-394-1182
NSN 5895-01-060-5016
NSN 5930-01-084-7536
NSN 5950-01-378-7042
NSN 6610-00-019-5460
NSN 5996-01-400-3558
NSN 5920-01-470-8851
NSN 5996-01-257-0940
NSN 5855-01-231-4945
NSN 5998-01-168-8953