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 5998-00-348-8544
NSN 2925-01-004-1683
NSN 6135-00-593-6831
NSN 5920-00-145-9806
NSN 6145-01-459-2287
NSN 6685-00-296-0392
NSN 6145-01-388-8818
NSN 5960-01-438-9836
NSN 6110-01-127-7264
NSN 5930-00-197-5907
NSN 5930-00-481-0809
NSN 5999-01-409-0780