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 5975-00-142-2450
NSN 5835-00-792-8438
NSN 5895-00-228-7993
NSN 6135-01-483-1501
NSN 5999-00-303-4624
NSN 6220-01-323-4236
NSN 4140-01-093-8110
NSN 6145-00-738-5601
NSN 5835-00-138-7807
NSN 2925-01-311-5769
NSN 5985-01-297-8602
NSN 5996-00-042-1518