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 6320-01-255-2096
NSN 5975-00-168-4429
NSN 6135-01-056-4609
NSN 5960-01-641-5493
NSN 6610-00-737-0864
NSN 5945-01-036-1201
NSN 5905-01-534-3754
NSN 6145-01-386-6762
NSN 5965-00-997-5764
NSN 6620-00-088-8795
NSN 5910-00-618-9643
NSN 6150-01-634-0575