National Stock Number
6630-00-244-9984
National Stock Number (NSN) 6630-00-244-9984, or NIIN 002449984, (hydrometer,graduated scale) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 6630005276148, 6630005805924.
There are 10 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 197 contracts issued for this part number, with 183 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 11 different suppliers. The last contract numbers awarded were: SPE2DH25V3365, SPE2DH25V3214, SPE2DH25V3106, SPE2DH25P1036, SPE2DH25V3003. The total value of the awarded contracts has been US$ 16,097.93.
This NSN is very common among different weapons systems, belonging to 29 different platforms.
This national stock number is in high demand. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 07185. [A HYDROMETER WITH A GRADUATED SCALE ON STEM CALIBRATED TO READ SPECIFIC GRAVITY, PERCENTAGE OF CONTENT(S), OR THE LIKE. SEE ALSO TESTER, ANTIFREEZE SOLUTIONS AND TESTER, BATTERY ELECTROLYTE SOLUTION.]. 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 6630002449984 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.