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 5990-01-492-9887
NSN 6150-00-245-2149
NSN 5960-01-140-4253
NSN 5930-01-598-0224
NSN 6645-01-373-8860
NSN 5915-01-433-4216
NSN 5855-01-135-8804
NSN 6105-00-333-3360
NSN 5990-01-112-3901
NSN 5855-01-355-8729
NSN 6610-01-497-6365
NSN 6220-01-530-3265