National Stock Number
6630-01-641-2631
National Stock Number (NSN) 6630-01-641-2631, or NIIN 016412631, (meter,ph) was assigned January 15, 2015 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, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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) 42678. [AN ELECTRICAL INSTRUMENT EMBODYING A POTENTIOMETER CIRCUIT WITH SUITABLE ELECTRODES TO DETERMINE THE EFFECTIVE ACIDITY OR ALKALINITY OF A SOLUTION IN THE MEASURING OF HYDROGEN IONS CONCENTRATION.]. 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 6630016412631 does not contain precious metals.
This NSN is associated to Schedule B 9027505000: other chemical analysis instruments and apparatus, 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.