Pressed in counterbored hole and oil level stenciled on glass front
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 6105-00-159-0723
NSN 2925-00-373-8837
NSN 5999-00-935-3361
NSN 6150-00-172-0431
NSN 5910-01-170-6501
NSN 6610-01-010-3159
NSN 5925-01-241-5091
NSN 5855-01-325-9507
NSN 5895-00-890-9177
NSN 5895-01-573-8968
NSN 5950-01-152-2622
NSN 6135-00-635-9187