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 5920-00-985-3768
NSN 6320-00-004-9158
NSN 5950-00-275-2842
NSN 6150-01-243-4443
NSN 6620-00-292-7000
NSN 6645-00-274-1279
NSN 5920-00-485-3044
NSN 6650-01-311-2050
NSN 5925-00-472-3444
NSN 6145-00-643-4962
NSN 5990-01-351-3746
NSN 6610-00-557-0900