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 5990-01-633-9503
NSN 6645-01-425-2330
NSN 5975-01-542-5432
NSN 6645-00-518-2068
NSN 5915-00-705-1780
NSN 5915-01-249-0106
NSN 5910-01-598-2612
NSN 6620-01-048-4145
NSN 5930-01-168-9901
NSN 6240-00-283-3553
NSN 6650-00-769-3003
NSN 5990-01-056-6413