Window furnished with a knurled ring around circumference
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 6130-01-411-4849
NSN 2925-01-471-3365
NSN 7035-01-369-1445
NSN 5895-01-017-3781
NSN 6645-01-590-0788
NSN 5920-01-099-4694
NSN 5930-00-883-5316
NSN 6620-00-759-6646
NSN 6650-01-076-5232
NSN 7035-00-251-8201
NSN 5915-01-098-4778
NSN 5915-01-395-8688