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 5920-00-298-0700
NSN 5925-01-369-1278
NSN 5895-01-346-1787
NSN 5985-00-176-1499
NSN 5999-01-434-8295
NSN 5960-01-425-1454
NSN 5998-01-649-1606
NSN 6650-00-754-2276
NSN 6240-00-832-6867
NSN 6620-01-232-0680
NSN 5910-01-121-2276
NSN 2925-01-203-0493