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 5915-00-166-8166
NSN 5998-01-110-0297
NSN 5835-01-566-5462
NSN 5985-01-323-8201
NSN 6685-01-257-5731
NSN 5975-01-250-1220
NSN 5855-01-511-2818
NSN 5950-01-220-5437
NSN 5990-01-568-5565
NSN 5855-01-027-1571
NSN 6620-00-466-2314
NSN 5855-01-350-5540