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 5920-00-242-2654
NSN 5990-00-937-9138
NSN 5996-00-246-8295
NSN 6105-01-353-9082
NSN 5915-01-347-7314
NSN 6645-00-287-9192
NSN 5975-01-388-1746
NSN 5990-01-411-5930
NSN 5999-01-207-0989
NSN 6150-00-521-4522
NSN 6220-01-067-8142
NSN 6320-00-731-6134