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 6685-00-364-0821
NSN 6240-00-983-2641
NSN 6645-00-445-8143
NSN 5905-01-388-1451
NSN 5985-01-596-7536
NSN 6150-00-846-6994
NSN 5960-00-099-9790
NSN 4140-01-091-8818
NSN 6220-01-591-7348
NSN 6220-01-476-9371
NSN 6145-00-180-5805
NSN 5935-01-013-4595