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 5920-00-215-5642
NSN 5999-01-580-6297
NSN 5998-01-084-8764
NSN 5905-01-374-2979
NSN 5895-00-269-3848
NSN 5905-01-025-8146
NSN 5996-00-549-4258
NSN 6110-01-649-4331
NSN 6650-00-495-8710
NSN 6650-00-027-2608
NSN 5950-01-325-4501
NSN 5999-01-497-4006