Beveled corners
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 5925-01-546-2708
NSN 6610-01-331-4006
NSN 6620-01-361-4796
NSN 6650-00-677-2577
NSN 6105-01-084-3053
NSN 5910-00-512-5739
NSN 7035-00-104-7613
NSN 5935-01-067-8366
NSN 5920-01-190-7940
NSN 2925-00-433-5429
NSN 5999-01-155-6838
NSN 5835-01-435-4139