1.187 in. By 0.281 in. Cut out on top edge
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 6240-01-316-7020
NSN 6610-01-212-9817
NSN 7035-01-502-8236
NSN 7035-00-155-9513
NSN 6620-00-650-4452
NSN 6105-01-227-3003
NSN 6130-01-025-4986
NSN 5895-01-182-4563
NSN 5895-01-535-1957
NSN 5905-00-818-1412
NSN 6105-00-351-8009
NSN 5930-01-511-0586