1st and 2nd corner radii 1.890 in., remaining corners sq
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 5925-01-553-0465
NSN 6220-01-240-7591
NSN 2925-00-679-8131
NSN 6620-01-449-8743
NSN 5990-01-357-6175
NSN 5895-01-492-5962
NSN 5925-01-446-6849
NSN 2925-01-303-5266
NSN 5920-00-209-0443
NSN 5950-00-203-3955
NSN 7035-01-553-2894
NSN 5915-00-851-4270