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 5945-00-402-5073
NSN 6110-00-711-0377
NSN 5945-01-524-0544
NSN 5998-01-398-9832
NSN 5950-00-311-5919
NSN 6320-00-089-9426
NSN 5985-01-123-8667
NSN 5975-01-651-4784
NSN 5920-00-993-6895
NSN 5895-01-534-5041
NSN 5920-01-428-6702
NSN 6150-01-411-6037