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 5920-00-056-6620
NSN 5915-00-168-9647
NSN 5935-00-790-7092
NSN 6240-00-132-5346
NSN 5920-01-243-2312
NSN 5985-00-897-1692
NSN 6145-01-641-7703
NSN 5998-01-512-1243
NSN 5945-01-249-1310
NSN 6220-01-415-0926
NSN 6645-01-620-0044
NSN 6645-01-041-3533