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 5910-01-065-7182
NSN 6645-01-172-6838
NSN 5925-00-238-0412
NSN 6135-00-405-1989
NSN 6240-01-188-5280
NSN 2925-01-424-0235
NSN 5950-01-395-0039
NSN 6685-01-442-9326
NSN 5985-01-125-2573
NSN 5905-00-154-0360
NSN 4140-00-231-1475
NSN 5945-00-823-3085