Corners slightly rounded
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 5915-01-090-3955
NSN 5925-01-435-4409
NSN 5975-00-419-9812
NSN 5910-00-495-9056
NSN 5930-01-149-8527
NSN 6130-01-336-9147
NSN 6135-01-297-5565
NSN 2925-01-197-7864
NSN 6320-00-643-0958
NSN 5945-00-529-0103
NSN 5965-00-859-8135
NSN 6685-00-225-8571