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 5945-00-975-0047
NSN 6110-00-124-8812
NSN 5990-00-927-3127
NSN 6320-01-006-6138
NSN 5910-01-549-8572
NSN 6320-01-476-7702
NSN 6685-00-468-1853
NSN 5990-00-518-2757
NSN 5965-01-261-5364
NSN 5945-00-250-5660
NSN 2925-01-327-3069
NSN 5990-01-341-5735