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 6240-00-788-6972
NSN 6610-01-556-2353
NSN 5855-01-511-0995
NSN 5915-01-104-6847
NSN 6685-00-451-2014
NSN 6220-01-434-7506
NSN 6320-01-506-9439
NSN 6650-01-354-7505
NSN 6685-01-591-2066
NSN 5960-00-204-7506
NSN 5985-00-289-9862
NSN 5975-00-988-3493