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 5930-01-139-5177
NSN 5990-01-458-1621
NSN 6610-00-125-7415
NSN 5895-00-814-5244
NSN 6645-00-381-9628
NSN 5920-01-430-2530
NSN 5910-00-366-6900
NSN 5996-01-624-1409
NSN 5905-00-727-5740
NSN 6135-01-093-7426
NSN 5905-00-519-0582
NSN 6110-01-603-3282