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 5910-00-475-2402
NSN 5999-00-277-4257
NSN 5920-00-339-0338
NSN 5835-00-946-2656
NSN 5945-00-350-0065
NSN 5930-01-546-9768
NSN 5998-00-775-2693
NSN 5925-00-106-7257
NSN 6620-01-201-2520
NSN 5985-00-434-0644
NSN 5985-01-121-7945
NSN 5996-01-277-3041