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 4140-01-133-9011
NSN 6645-01-262-1622
NSN 6320-00-893-2857
NSN 5930-01-250-2889
NSN 5925-01-435-8967
NSN 5925-01-244-2012
NSN 5985-01-286-4823
NSN 5950-00-349-4978
NSN 5998-00-194-7640
NSN 6645-01-252-8870
NSN 5996-01-494-2942
NSN 6110-01-218-3675