4holes 0.140 in. Diameter spaced 3.375 in. By 1.375 in. Mtg centers
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 6150-00-148-3909
NSN 5905-00-384-0449
NSN 5915-01-280-9783
NSN 5930-00-442-0893
NSN 5905-00-706-8963
NSN 5855-01-471-7836
NSN 5965-01-446-6001
NSN 5990-00-681-2789
NSN 5996-00-477-3926
NSN 5935-00-472-0295
NSN 5999-01-009-2197
NSN 6650-00-264-0664