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 5915-00-013-0148
NSN 6320-01-554-0901
NSN 5990-01-429-6211
NSN 6220-01-648-6766
NSN 2925-01-354-1752
NSN 5996-01-084-6930
NSN 5935-00-977-1131
NSN 5998-01-174-0299
NSN 4140-00-736-8813
NSN 5925-01-573-7284
NSN 5990-01-440-7135
NSN 5925-01-374-0538