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 5950-01-300-5865
NSN 5998-01-082-3854
NSN 5999-00-789-4473
NSN 6685-00-371-5492
NSN 5999-01-501-5137
NSN 5895-00-514-2905
NSN 4140-00-392-2561
NSN 2925-00-431-9369
NSN 6610-01-039-0788
NSN 5950-00-728-6601
NSN 6620-00-400-4237
NSN 5920-01-660-4268