Corners slightly rounded
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 7035-01-607-0271
NSN 6240-00-630-8069
NSN 7035-00-703-3535
NSN 5935-01-560-1637
NSN 6620-00-707-4195
NSN 6240-01-560-6424
NSN 5990-01-525-2250
NSN 6610-01-024-0675
NSN 6650-01-279-2055
NSN 5999-01-357-1030
NSN 5945-01-006-1825
NSN 6685-01-565-9049