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 5985-01-246-4604
NSN 6220-01-265-8650
NSN 5950-00-597-8644
NSN 5990-01-382-5364
NSN 5996-01-258-5888
NSN 6610-01-513-3233
NSN 5915-01-449-0859
NSN 5905-01-206-4998
NSN 5915-01-218-3106
NSN 5855-01-451-7389
NSN 5895-01-293-2090
NSN 2925-00-791-8776