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 5999-01-088-8242
NSN 6645-01-182-4896
NSN 5945-01-306-6205
NSN 5935-01-035-4326
NSN 6620-00-203-9466
NSN 5990-01-094-7740
NSN 5895-01-442-5548
NSN 5975-00-199-4956
NSN 5960-01-187-7400
NSN 5925-01-218-5999
NSN 6645-01-428-3576
NSN 6145-00-475-6909