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 5930-00-831-5231
NSN 5925-01-566-3242
NSN 4140-01-513-9139
NSN 5905-01-074-2068
NSN 6620-00-144-3410
NSN 5998-00-484-6943
NSN 5945-01-497-2711
NSN 5930-01-487-6453
NSN 5905-01-286-1196
NSN 6645-01-211-6502
NSN 6135-01-415-4124
NSN 5905-01-367-2819