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 5935-01-505-1629
NSN 5910-00-894-1903
NSN 6645-01-003-5692
NSN 5910-01-564-7380
NSN 5998-01-568-5126
NSN 5910-01-246-7700
NSN 5920-00-621-6601
NSN 5960-01-356-1693
NSN 6650-00-717-8913
NSN 5855-01-171-2818
NSN 5965-01-209-2838
NSN 5965-01-661-0996