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 5975-00-123-3494
NSN 5960-01-089-8155
NSN 5930-01-516-3559
NSN 5835-01-388-5198
NSN 6135-00-299-6918
NSN 5910-01-403-2812
NSN 5895-01-120-8643
NSN 5960-00-393-2505
NSN 5835-01-272-4087
NSN 5920-00-328-4503
NSN 6220-00-197-9719
NSN 6240-01-659-3499