National Stock Number
6625-01-181-6420
National Stock Number (NSN) 6625-01-181-6420, or NIIN 011816420, (meter,electrical frequency) was assigned June 13, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 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 fairly common among different weapons systems, belonging to 15 different platforms.
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.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 16454. [AN INSTRUMENT WHICH MEASURES THE RATE OF REGULARLY RECURRING VARIATIONS IN AN ELECTRIC CURRENT OR VOLTAGE AND IS USUALLY CALIBRATED IN HERTZ (CYCLES PER SECOND OR CPS). THE VALUE MAY BE EXPRESSED BY MEANS OF A POINTER AND CALIBRATED DIAL VIBRATING REED OR A DIGITAL READ OUT DISPLAY. FOR INSTRUMENTS WHICH MEASURE RADIO FREQUENCIES, SEE CALIBRATOR, FREQUENCY; AND WAVEMENTER. EXCLUDES: COUNTER ELECTRONIC DIGITAL.]. 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 6625011816420 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.