Bottom 4.0 mm recessed 7.0 - 7.2 mm; top edge chamfered 45 degrees to depth of 1.5 mm; top and bottom surfaces to be polished and visually clear without scratches; all other edges to be machined but not polished
No other part numbers with same form, fit, and function found.
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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 2925-01-389-6874
NSN 6685-01-118-2049
NSN 5999-00-467-5030
NSN 5935-01-430-2481
NSN 5985-01-467-9502
NSN 6610-01-149-9749
NSN 6135-00-235-1938
NSN 6145-00-542-7980
NSN 5990-01-470-2565
NSN 7035-01-594-0182
NSN 6240-00-944-1264
NSN 5998-01-553-4957