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 6240-00-911-4832
NSN 5985-00-757-5903
NSN 5945-01-026-1916
NSN 6685-01-628-6575
NSN 5999-01-456-1370
NSN 5855-01-224-7975
NSN 2925-01-121-3355
NSN 4140-01-332-6904
NSN 6685-01-358-7884
NSN 5990-00-613-2279
NSN 6150-00-954-5131
NSN 6650-01-141-5999