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 5905-00-977-9108
NSN 5965-00-493-6008
NSN 6150-01-631-2554
NSN 5945-00-376-4930
NSN 5996-01-605-3377
NSN 6150-01-168-8290
NSN 6685-00-469-0474
NSN 6145-01-634-0388
NSN 6150-00-608-2404
NSN 5920-00-579-8434
NSN 6220-01-084-6402
NSN 6130-00-786-1775