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 6610-01-383-6982
NSN 6620-01-654-5719
NSN 2925-01-415-0264
NSN 6645-01-115-4953
NSN 5996-01-123-0792
NSN 5945-00-840-5418
NSN 5950-00-244-0498
NSN 5915-01-487-1441
NSN 6610-01-633-6773
NSN 6320-01-426-8494
NSN 5925-01-033-9086
NSN 6220-01-246-5064