National Stock Number
6635-00-191-7870
National Stock Number (NSN) 6635-00-191-7870, or NIIN 001917870, (tester,material hardness) was assigned March 4, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 18992. [AN INSTRUMENT DESIGNED TO MEASURE THE HARDNESS OF METALS, PLASTICS, RUBBER, AND OTHER SOLIDS, BY METHODS BASED ON RESISTANCE TO PENETRATION BY AN INDENTER OF GREATER HARDNESS THAN THE MATERIAL BEING TESTED.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6635001917870 contains an unknown precious metal.
This NSN is associated to Schedule B 9027803500: physical analysis instruments and apparatus, except using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Jul 01, 2025.