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 5920-01-051-0090
NSN 5975-01-607-6582
NSN 4140-00-870-4376
NSN 6110-01-122-3025
NSN 5996-00-435-7767
NSN 5930-01-361-9027
NSN 5945-01-148-7960
NSN 5990-01-046-3450
NSN 6110-01-218-7766
NSN 6610-00-950-7105
NSN 4140-00-262-9921
NSN 5915-01-376-7174