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 6220-01-034-1231
NSN 5985-01-408-5284
NSN 5920-01-282-3723
NSN 5990-01-425-2175
NSN 2925-01-535-7235
NSN 5950-00-051-4340
NSN 5835-01-632-6627
NSN 5925-01-441-2976
NSN 5930-01-094-8275
NSN 6610-01-655-4737
NSN 5895-01-434-3581
NSN 6610-00-968-8193