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 6145-00-258-3608
NSN 5990-01-254-3197
NSN 7035-01-265-0216
NSN 5960-01-495-0859
NSN 5925-00-330-8778
NSN 6150-01-529-5671
NSN 5895-00-552-0233
NSN 5998-01-025-7508
NSN 5999-01-205-7533
NSN 6320-01-521-1764
NSN 6105-01-654-6408
NSN 6240-00-459-5367