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 5985-01-484-6014
NSN 5905-01-419-6768
NSN 5999-00-201-0309
NSN 6135-01-270-8601
NSN 5915-00-954-0559
NSN 5855-01-534-3724
NSN 4140-00-057-2785
NSN 4140-00-402-2080
NSN 5935-01-442-5398
NSN 5930-01-616-3528
NSN 6105-01-653-2867
NSN 5960-01-163-6416