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 5915-01-462-2124
NSN 5895-00-248-2392
NSN 5985-01-543-1717
NSN 5935-01-021-6931
NSN 5975-01-214-3577
NSN 6685-01-032-2077
NSN 5855-00-869-3635
NSN 6135-01-062-9356
NSN 5855-01-100-3272
NSN 6240-01-534-5829
NSN 5965-01-518-0623
NSN 5920-01-070-4601