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 6645-01-103-8449
NSN 5855-01-496-4105
NSN 6240-00-866-4143
NSN 5910-00-938-6387
NSN 5855-01-470-8247
NSN 5930-01-170-3004
NSN 5990-00-432-0649
NSN 6130-01-215-2971
NSN 6610-01-492-9888
NSN 5996-01-462-0112
NSN 5905-01-630-2501
NSN 6610-00-331-3460