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 5960-01-107-2549
NSN 6645-00-337-8298
NSN 5895-01-204-5082
NSN 5855-01-433-3197
NSN 5920-00-491-9163
NSN 5996-00-346-7065
NSN 6685-00-287-7564
NSN 5945-00-468-7995
NSN 5990-01-241-2479
NSN 2925-01-623-6438
NSN 5895-00-494-4386
NSN 6685-00-215-1997