Four 0.144 in. Dia. Mtg. Holes spaced 90 deg. Apart on 2.672 in.Radius
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 6320-01-478-5393
NSN 6105-01-210-8948
NSN 5985-00-915-3603
NSN 6650-00-136-4923
NSN 5950-01-093-5077
NSN 6320-01-544-6447
NSN 5855-01-254-6826
NSN 5835-00-921-1662
NSN 6145-01-657-8415
NSN 6320-01-643-0850
NSN 6610-01-152-1463
NSN 4140-01-004-3035