National Stock Number
6685-00-637-8553
National Stock Number (NSN) 6685-00-637-8553, or NIIN 006378553, (gage,pressure,dial indicating) 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: 6685006338227, 6685006986734.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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) 07428. [AN INSTRUMENT DESIGNED TO MEASURE AIR, GAS, FLUID, AND VAPOR PRESSURE BY MEANS OF AN INTERNAL PRESSURE SENSITIVE ELEMENT (BELLOWS, BOURDON TUBE, TRANSDUCER/TRANSMITTER AND THE LIKE) WHICH TRANSMITS ENERGY, BY DIRECT LINKAGE, TO THE INDICATING POINTER OF A SCALE OR A DIGITAL DISPLAY, CALIBRATED IN UNITS OF PRESSURE. IT MAY INCLUDE A TEMPERATURE EQUIVALENT SCALE. FOR ITEMS THAT DO NOT HAVE AN INTERNAL PRESSURE SENSITIVE ELEMENT SEE INDICATOR, PRESSURE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6685006378553 contains an unknown precious metal.
This NSN is associated to Schedule B 9026200000: instruments and apparatus for measuring or checking pressure. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334513: instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables.
This information was last updated on Jul 01, 2025.