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 6620-01-206-5748
NSN 6685-00-959-4089
NSN 5996-01-649-5616
NSN 5920-01-131-1859
NSN 5999-00-451-6370
NSN 6105-01-365-8006
NSN 5835-01-150-6084
NSN 5990-01-047-2352
NSN 6145-01-214-3607
NSN 5910-00-904-1991
NSN 5996-00-050-6570
NSN 5998-00-760-9192