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 5975-00-557-2253
NSN 5960-00-211-2105
NSN 5999-01-181-4664
NSN 5910-01-088-6848
NSN 5985-01-512-7785
NSN 5990-01-462-1617
NSN 5998-01-279-0210
NSN 5925-01-240-5207
NSN 5935-01-540-0991
NSN 5996-00-408-1630
NSN 6105-01-339-3389
NSN 5925-01-058-1853