4 5/16 in. Diameter drilled holes on 3 1/4 in. Bolt circle; appl to a demineralizer
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 5855-01-157-3093
NSN 5965-01-620-5320
NSN 5990-01-055-9471
NSN 5920-00-519-7664
NSN 6105-00-466-9880
NSN 5835-00-484-1529
NSN 5835-01-104-7183
NSN 5960-01-132-2975
NSN 4140-01-487-6227
NSN 5996-00-253-0796
NSN 5895-01-024-9573
NSN 6105-00-380-9603