Mounts by a 5/8-24 threaded hole on one end
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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5855-01-163-8152
NSN 6650-01-503-2638
NSN 4140-00-495-8704
NSN 6130-01-437-6432
NSN 5915-01-151-3057
NSN 5999-01-533-8445
NSN 5905-01-008-2353
NSN 5945-01-191-7037
NSN 6620-00-868-2147
NSN 5905-00-024-8578
NSN 6145-00-786-7980
NSN 5985-00-554-9730