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 6650-01-605-5805
NSN 5895-00-545-7223
NSN 5920-01-423-6274
NSN 6145-01-340-2394
NSN 6685-01-463-9078
NSN 6610-01-065-1073
NSN 5945-01-504-4743
NSN 6105-00-137-9521
NSN 6320-00-681-1324
NSN 5999-00-065-6764
NSN 6685-01-226-4068
NSN 5905-00-912-5433