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 2925-00-328-2018
NSN 5915-01-265-8357
NSN 5925-01-368-3723
NSN 6685-01-120-9858
NSN 5910-00-682-6243
NSN 4140-01-556-7426
NSN 5920-01-633-6427
NSN 5925-01-364-0771
NSN 6320-01-513-6728
NSN 5985-01-464-4528
NSN 6135-01-351-1131
NSN 5905-01-370-3801