Ssr name is sight glass
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 6240-00-269-3346
NSN 6150-00-929-3539
NSN 6220-01-659-6852
NSN 6145-00-376-0070
NSN 6620-01-461-2387
NSN 6685-00-246-5349
NSN 5920-01-143-2212
NSN 5975-01-151-9790
NSN 4140-01-408-7232
NSN 5855-01-020-7982
NSN 5960-01-131-7506
NSN 5855-00-089-3974