National Stock Number
6630-01-217-5521
National Stock Number (NSN) 6630-01-217-5521, or NIIN 012175521, (meter,ph) has an unknown assigned date. NIIN 012175521 was cancelled on September 19, 1999, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
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 critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6630012175521 does not contain precious metals.
This information was last updated on Aug 01, 2025.