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 5990-00-636-4218
NSN 6220-01-401-5337
NSN 4140-01-132-6612
NSN 6220-00-536-5738
NSN 5950-01-525-7638
NSN 6620-01-415-5803
NSN 5930-01-521-3287
NSN 5835-01-227-2318
NSN 6620-01-389-3324
NSN 5996-01-459-8014
NSN 6145-00-581-1629
NSN 5950-01-487-3750