Mounts by a 5/8-24 threaded hole on one end
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 2925-01-197-7864
NSN 5835-00-119-5585
NSN 5998-01-033-5047
NSN 5910-01-315-6613
NSN 6220-01-498-7211
NSN 5965-01-150-1920
NSN 5915-01-442-6050
NSN 5975-01-328-6737
NSN 5915-01-571-7341
NSN 6620-00-190-3385
NSN 5965-00-320-1399
NSN 5985-01-095-3402