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 5985-01-392-0612
NSN 5920-01-370-4376
NSN 5910-01-076-2126
NSN 4140-01-513-9139
NSN 6105-00-710-4522
NSN 4140-01-316-4071
NSN 6620-00-010-8190
NSN 6105-01-170-4751
NSN 6150-00-306-0157
NSN 5935-00-900-0859
NSN 6685-00-150-2779
NSN 6645-01-164-7650