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 5990-01-108-0436
NSN 4140-01-400-0643
NSN 6240-01-576-9120
NSN 5895-01-301-4849
NSN 5960-00-072-0577
NSN 5945-01-320-1302
NSN 5998-01-426-8989
NSN 5960-01-272-0285
NSN 5895-01-451-9743
NSN 5925-01-539-3115
NSN 5915-01-444-7186
NSN 4140-00-146-3269