Glass sight window.
An item so designed to have a portion or all of its body transparent to permit the visual examination of the amount of liquid in a pressure vessel, boiler, evaporator, still, processing tank, reservoir, pipe tubing line, and the like, and/or to determine the flow to a lubricated part. It may also be provided with an element that changes colors to indicate changes in moisture content. The item may have a means for refilling. Excludes indicator, liquid quantity and indicator, rate of flow.
Classification: Instruments and apparatus for measuring or checking the flow or level of liquids, nesoi
NSN 5935-01-530-2246
NSN 6685-01-356-8177
NSN 5930-01-539-2009
NSN 5835-01-608-4285
NSN 6110-00-636-1234
NSN 6685-01-166-3903
NSN 6650-01-261-5239
NSN 5985-00-621-4449
NSN 5920-01-313-3892
NSN 6145-00-156-4394
NSN 6240-01-483-0449
NSN 4140-00-578-7726