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 5895-01-634-0630
NSN 6105-00-183-9019
NSN 6220-01-303-0996
NSN 5835-01-180-1400
NSN 5855-01-389-8884
NSN 4140-01-477-4566
NSN 5915-01-333-4749
NSN 5935-01-577-0202
NSN 5990-00-212-4316
NSN 5985-00-417-4566
NSN 5965-01-253-0451
NSN 5855-00-014-5008