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 6135-01-559-1578
NSN 6240-01-131-4454
NSN 5910-01-127-4475
NSN 6220-01-512-2028
NSN 6220-01-533-1302
NSN 6105-00-665-8581
NSN 6320-01-631-7828
NSN 6240-00-140-4184
NSN 5999-01-158-1191
NSN 5965-01-652-3339
NSN 5996-01-245-2946
NSN 5998-01-362-1008