National Stock Number
4910-12-301-2120
National Stock Number (NSN) 4910-12-301-2120, or NIIN 123012120, (tester,internal combustion engine) has an unknown assigned date. This NSN does not replace any other NSNs.
There are 10 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for 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) 13553. [A DEVICE CONSISTING OF TWO OR MORE GAGES OR INDICATORS MOUNTED IN A SINGLE UNIT, AND CAPABLE OF DETERMINING TWO OR MORE DIFFERENT MECHANICAL PERFORMANCE CHARACTERISTICS OF AN INTERNAL COMBUSTION ENGINE, OR ITS COMPONENT SYSTEMS, WHILE FUNCTIONING UNDER ENGINE OPERATING CONDITIONS, BY MAKING EITHER A SINGLE OR A MULTIPLE TEST IN ORDER TO DETERMINE ONE OR MORE ENGINE CHARACTERISTICS SIMILAR TO THE FOLLOWING: CYLINDER COMPRESSION, ENGINE OIL PRESSURE, CARBURATOR ADJUSTMENT, MANIFOLD VACUUM, FUEL PUMP PRESSURE, AND THE LIKE. IT DOES NOT INCLUDE PERMANENTLY INSTALLED GAGES, OR ANY DEVICES DESIGNED TO TEST ELECTRICAL COMPONENTS OR CHARACTERISTICS OF AN ENGINE. SEE ALSO TESTER, IGNITION SYSTEM, ENGINE.].
This information was last updated on Oct 13, 2025.