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 5895-01-104-3815
NSN 5965-01-335-6630
NSN 5960-01-418-2641
NSN 5945-01-176-0048
NSN 5905-00-971-2139
NSN 5950-00-709-6235
NSN 5985-00-631-2210
NSN 5835-01-075-9884
NSN 6145-00-526-3056
NSN 5930-00-222-7930
NSN 6685-01-308-8891
NSN 6620-00-643-1402