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 6145-00-141-8095
NSN 5835-01-235-7821
NSN 5905-00-772-3485
NSN 5915-01-608-1437
NSN 5998-00-317-7215
NSN 5985-00-884-2190
NSN 5895-00-060-4349
NSN 5965-00-886-8511
NSN 5935-00-997-8275
NSN 5905-01-565-7917
NSN 5910-01-578-4575
NSN 6320-01-292-6635