National Stock Number (NSN) 6685-00-557-5317, or NIIN 005575317, (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: 6685008106773, 6685006845172.
There are 12 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 37 contracts issued for this part number, with 48 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A725F6703, SPE4A725F6703, SPE4A725F5460, SPE4A725F5460, SPE4A725F5460. The total value of the awarded contracts has been US$ 1,017,358.58.
This NSN is fairly common among different weapons systems, belonging to 19 different platforms.
There has been a small amount of demand for this national stock number. 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 Sep 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
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 is a Flight Safety Critical Aircraft Part (FSCAP). 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 6685005575317 does not contain precious metals.
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 Aug 01, 2025.