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 5935-01-235-5890
NSN 5895-00-850-6399
NSN 5920-01-116-4236
NSN 5915-01-446-7238
NSN 5920-01-331-0293
NSN 5950-01-176-1590
NSN 5925-01-144-7581
NSN 5998-01-412-4343
NSN 6135-01-116-3385
NSN 6620-00-974-7595
NSN 5930-00-119-5884
NSN 4140-00-912-1904