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 5999-00-171-6906
NSN 6150-01-199-1436
NSN 6685-01-107-9643
NSN 6645-01-500-5611
NSN 5895-00-009-0127
NSN 5905-01-449-1291
NSN 6130-01-014-4588
NSN 5998-00-621-1499
NSN 5915-01-340-0650
NSN 5985-00-472-1155
NSN 5915-00-407-2910
NSN 6130-00-681-1496