Four chamfered corners 0.140 in. By 45 deg.
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 5855-00-198-3197
NSN 5985-01-643-5854
NSN 5930-01-612-0508
NSN 2925-01-430-4206
NSN 2925-01-642-8954
NSN 6110-00-423-5836
NSN 5855-01-483-1350
NSN 2925-00-333-4702
NSN 5855-01-472-3963
NSN 5996-01-630-4778
NSN 6650-00-183-9648
NSN 5925-01-322-4366