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 5905-00-277-7439
NSN 2925-01-614-3634
NSN 5910-01-338-5474
NSN 5999-01-203-7359
NSN 5965-01-398-3099
NSN 5925-01-452-8391
NSN 5985-01-172-1022
NSN 6650-00-607-1351
NSN 2925-01-540-7389
NSN 6150-01-481-4019
NSN 5985-01-594-9217
NSN 6130-01-371-2960