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 6110-01-365-2718
NSN 6320-01-006-6138
NSN 5950-01-463-7280
NSN 5905-01-025-6949
NSN 6610-00-179-5254
NSN 5950-01-043-9329
NSN 6610-01-264-4888
NSN 5835-01-234-3524
NSN 5925-01-025-0322
NSN 7035-01-443-3052
NSN 5960-00-839-1529
NSN 6145-01-067-5226