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 6240-00-398-0740
NSN 5998-01-319-2814
NSN 6220-00-899-6718
NSN 5835-01-614-1900
NSN 5930-00-084-3672
NSN 4140-00-541-9077
NSN 5996-00-003-0325
NSN 6220-01-343-2204
NSN 5985-00-959-7190
NSN 6610-00-735-9555
NSN 5975-01-168-4374
NSN 6620-01-070-9042