Edge tin plated over platinum plated
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 5965-01-225-7974
NSN 6110-00-147-2766
NSN 6150-01-386-3071
NSN 6145-00-185-9962
NSN 6135-00-816-9052
NSN 5996-00-222-6049
NSN 6320-01-346-5158
NSN 5960-01-171-1664
NSN 5905-01-210-3014
NSN 5925-00-001-7446
NSN 6240-01-439-0998
NSN 6240-00-496-8974