National Stock Number
6660-01-640-6821
National Stock Number (NSN) 6660-01-640-6821, or NIIN 016406821, (altimeter-barometer,aneroid) was assigned December 17, 2014 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 18, 2014, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 12872. [A BAROMETRIC TYPE INSTRUMENT CONSISTING OF A PRESSURE-SENSITIVE ELEMENT WHICH CONTRACTS OR EXPANDS IN PROPORTION TO ATMOSPHERIC PRESSURE, CONNECTED THROUGH A LINKAGE TO A POINTER. ITS DIAL IS GRADUATED IN UNITS OF LINEAR MEASUREMENT (FEET, METERS, AND THE LIKE) AND UNITS OF PRESSURE MEASUREMENT (POUNDS PER SQUARE INCHE, INCHES OF MERCURY, MILIBARS, AND THE LIKE.) TO INDICATE BOTH ATMOSPHERIC PRESSURE AND DIFFERENCES OF ELEVATION.]. 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 6660016406821 does not contain precious metals.
This information was last updated on Jul 01, 2025.