National Stock Number
6625-00-691-6598
National Stock Number (NSN) 6625-00-691-6598, or NIIN 006916598, (wavemeter) 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: 6625007144084, 6625012983950.
There are 9 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 15 suppliers. Today, 12 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 8 suppliers are 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 May 02, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. 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) 00783. [AN ITEM FOR THE DETERMINATION OF THE ELECTRICAL WAVELENGTH OR FREQUENCY BEING GENERATED BY AN ELECTRONIC EQUIPMENT SUCH AS A RADIO TRANSMITTER. IT MAY BE PLACED IN THE RADIATION FIELD OF THE EQUIPMENT, THEREBY OPERATING ON THE "ABSORPTION" PRINCIPLE, OR CONNECTED INTO A TRANSMISSION LINE OR WAVEGUIDE RUN BETWEEN THE EQUIPMENT AND A COMPONENT SUCH AS AN ANTENNA, THEREBY OPERATING ON THE TUNED CAVITY RESONANCE PRINCIPLE. IT INCLUDES INSCRIPTIONS FROM WHICH THE WAVELENGTH OR FREQUENCY CAN BE DETERMINED DIRECTLY, OR BY REFERENCE TO AN ASSOCIATED CALIBRATION CURVE OR TABULATION. THE WAVEMETER OPERATES IN ACCORDANCE WITH ITS DESIGN FUNCTION ONLY WHEN THE EQUIPMENT UNDER MEASUREMENT IS OPERATING. FOR ITEMS, SUCH AS GRID DIP METERS, THAT DETERMINE THE SAME INFORMATION WHEN THE EQUIPMENT UNDER MEASUREMENT IS NOT OPERATING, SEE FREQUENCY METER.]. 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 6625006916598 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.