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 6620-00-613-3023
NSN 5935-00-595-5899
NSN 5915-01-103-3910
NSN 5999-00-955-1171
NSN 4140-01-073-3777
NSN 5910-01-231-9507
NSN 5960-01-110-6749
NSN 6240-00-782-1407
NSN 5960-00-170-4574
NSN 5895-01-360-8915
NSN 6650-01-488-6418
NSN 6610-01-474-6333