National Stock Number
6625-00-542-0539
National Stock Number (NSN) 6625-00-542-0539, or NIIN 005420539, (ammeter) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 6625005804741, 6625005538325, 6625006492715, 6625006689232.
There are 8 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, 8 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.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M825P0859, SPE7M825P0859. The total value of the awarded contracts has been US$ 15,732.00.
This NSN is very common among different weapons systems, belonging to 30 different platforms.
There has been very little 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 Apr 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) 16450. [AN INSTRUMENT WHICH MEASURES ELECTRIC CURRENT AND IS CALIBRATED AND MARKED IN AMPERES OR ANY MULTIPLE AND/OR SUBMULTIPLE THEREOF. THE VALUE MAY BE EXPRESSED BY MEANS OF A POINTER AND CALIBRATED DIAL OR A DIGITAL READOUT DISPLAY. FOR CURRENT DETECTING TYPE OF DEVICES, SEE GALVANOMETER.]. 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 6625005420539 does not contain precious metals.
This NSN is associated to Schedule B 9030908030: parts and accessories of articles of schedule b subheading 9030.39. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.
This information was last updated on Aug 01, 2025.