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 5998-01-016-6242
NSN 6240-01-604-6780
NSN 5985-01-519-8628
NSN 5990-00-033-8128
NSN 6105-01-231-7332
NSN 2925-01-030-6580
NSN 5985-00-722-7462
NSN 5835-00-415-6421
NSN 5905-00-111-8468
NSN 6145-01-583-8393
NSN 5960-01-444-2205
NSN 5855-01-652-4288