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 5990-01-400-3299
NSN 6110-00-228-8570
NSN 5996-01-381-5313
NSN 5895-01-510-0380
NSN 5998-01-519-8033
NSN 6645-01-162-8023
NSN 2925-00-005-1618
NSN 5930-01-591-4259
NSN 5945-01-602-7409
NSN 6685-01-333-2537
NSN 6150-01-207-1170
NSN 5920-01-429-4631