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 5905-01-489-7053
NSN 5895-01-050-3490
NSN 4140-01-497-6958
NSN 5915-01-110-5312
NSN 5975-01-596-7390
NSN 6105-00-566-7002
NSN 5998-01-054-0117
NSN 2925-00-449-2478
NSN 2925-01-556-0333
NSN 5975-00-581-9862
NSN 4140-01-106-2559
NSN 6145-00-950-4922