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 5975-00-772-8002
NSN 5835-00-433-8540
NSN 5915-00-078-2086
NSN 6650-01-487-4949
NSN 5996-00-958-4244
NSN 5998-01-232-8382
NSN 5985-01-225-5536
NSN 5965-01-619-0258
NSN 6145-00-570-0516
NSN 6650-00-583-1735
NSN 5960-01-132-2975
NSN 5985-01-152-8044