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 5999-01-400-1770
NSN 6105-00-533-3142
NSN 5915-01-083-6301
NSN 5985-00-905-5049
NSN 6320-00-977-3930
NSN 5835-01-501-0526
NSN 6320-01-292-2232
NSN 6240-01-307-6999
NSN 6145-00-252-5290
NSN 5975-01-578-6451
NSN 6620-00-167-0963
NSN 6645-01-508-8770