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 6620-01-294-1044
NSN 5990-00-089-4340
NSN 4140-01-372-1039
NSN 5895-00-466-3100
NSN 7035-01-042-0527
NSN 2925-00-756-8510
NSN 5855-00-472-2055
NSN 5895-00-291-4873
NSN 5910-00-142-8706
NSN 5905-01-534-5964
NSN 6150-01-179-0500
NSN 6135-01-159-9705